Hello World

spatlou

Listed Bugs.

spatlou

printf("Hello\n")
//Bug Introduced: Removed Semicolon
hello.c: In function ‘main’:
hello.c:6:2: error: expected ‘;’ before ‘return’
return 0;
======================================

sandeshgupta4u

1.

printf("Hello\n")
Bug Introduced: Removed Semicolon
hello.c: In function ‘main’:
hello.c:6:2: error: expected ‘;’ before ‘return’
return 0;
======================================

sandeshgupta4u

2.
printf();
Bug Introduced: No argument passed
hello.c: In function ‘main’:
hello.c:3:1: error: too few arguments to function ‘printf’
printf();
^~~~~~
In file included from hello.c:1:
/usr/include/stdio.h:318:12: note: declared here
extern int printf (const char *__restrict __format, ...);

======================================

sandeshgupta4u

3.
printf("Hello\n)
//Bug Introduced: Removed double quote
hello.c: In function ‘main’:
hello.c:4:8: warning: missing terminating " character
printf("hello world);
        ^
hello.c:4:8: error: missing terminating " character
printf("hello world);
        ^~~~~~~~~~~~~~
hello.c:5:1: error: expected expression before ‘return’
return 0;
^~~~~~
hello.c:5:10: error: expected ‘;’ before ‘}’ token
return 0;
          ^
          ;
hello.c:7:1:
}
~

======================================

sandeshgupta4u

4.
int main{...};
Bug Introduced: Removed brackets after main
hello.c:3:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
{
^

======================================

sandeshgupta4u

5.
print("Hello World");
Bug Introduced: function name change to print
hello.c: In function ‘main’:
hello.c:4:1: warning: implicit declaration of function ‘print’; did you mean ‘printf’? [-Wimplicit-function-declaration]
print("hello world");
^~~~~
printf
/tmp/ccPDIPf4.o: In function `main':
hello.c:(.text+0xf): undefined reference to `print'
collect2: error: ld returned 1 exit status

======================================

sandeshgupta4u

6.
print("Hello World");
Bug Introduced: function name change to print
hello.c: In function ‘main’:
hello.c:4:1: warning: implicit declaration of function ‘print’; did you mean ‘printf’? [-Wimplicit-function-declaration]
print("hello world");
^~~~~
printf
/tmp/ccPDIPf4.o: In function `main':
hello.c:(.text+0xf): undefined reference to `print'
collect2: error: ld returned 1 exit status

======================================

sandeshgupta4u

7.
#include<stdio>
Bug Introduced: Removed .h from header file
hello.c:1:9: fatal error: stdio: No such file or directory
#include<stdio>
^~~~~~~
compilation terminated.

======================================

sandeshgupta4u

8.
#include
Bug Introduced: Removed filename of header file
hello.c:1:9: error: #include expects "FILENAME" or <FILENAME>
#include
^

=========================================

sandeshgupta4u

9.
return a;
Bug Introduced: Returned 'a' to the main,instead of a int
hello.c: In function ‘main’:
hello.c:5:9: error: ‘a’ undeclared (first use in this function)
return a;
^
hello.c:5:9: note: each undeclared identifier is reported only once for each function it appears in

============================================================================

sandeshgupta4u

10.
void main()
{
return 0;
}

Bug Introduced: Changed return type of main function to void with return 0 used in the program
hello.c: In function ‘main’:
hello.c:5:9: warning: ‘return’ with a value, in function returning void
return 0;
^
hello.c:2:6: note: declared here
void main()
^~~~
==================================================================================================================

sandeshgupta4u

11.
stack main()
Bug Introduced: Changed return type of main function to stack
hello.c:2:1: error: unknown type name ‘stack’; did you mean ‘struct’?
stack main()
^~~~~
struct

========================================================================================================================================================
12.
struct main()
Bug Introduced: Changed return type of main function to struct
hello.c:2:13: error: expected identifier or ‘(’ before ‘)’ token
struct main()
             ^

==============================================================================================================================================================================================
13.
const main()
Bug Introduced: Changed return type of main function to const
hello.c:2:7: warning: return type defaults to ‘int’ [-Wimplicit-int]
const main()
       ^~~~

====================================================================================================================================================================================================================================
14.
printf(Hello World!);
Bug Introduced: Removed double quotes in argument passed in printf
hello.c: In function ‘main’:
hello.c:5:9: error: ‘Hello’ undeclared (first use in this function); did you mean ‘ftello’?
printf(Hello World!);
         ^~~~~
         ftello
hello.c:5:9: note: each undeclared identifier is reported only once for each function it appears in
hello.c:5:14: error: expected ‘)’ before ‘World’
printf(Hello World!);
              ^~~~~~
              )

==========================================================================================================================================================================================================================================================================
15.
int main()
printf(Hello World!);
{}
Bug Introduced: Curly brackets used after printf
hello.c: In function ‘main’:
hello.c:5:2: error: expected declaration specifiers before ‘printf’
printf("Hello World!");
^~~~~~
hello.c:6:2: error: expected declaration specifiers before ‘return’
return 0;
^~~~~~

================================================================================================================================================================================================================================================================================================================

sandeshgupta4u

16.
return 11111111111111111111111110;

Bug Introduced:increased value of return to long int
ello.c: In function ‘main’:
hello.c:5:9: warning: integer constant is too large for its type
return 1111111111111111111111110;
         ^~~~~~~~~~~~~~~~~~~~~~~~~
hello.c:5:9:
warning: overflow in conversion from ‘long int’ to ‘int’ changes value
from ‘8375319363688624582’ to ‘1092383174’ [-Woverflow]

         ^~~~~~~~~~~~~~
=============================================================
17.
main(){}printf();

Bug Introduced:printf used outside main
hello.c:3:11: error: expected declaration specifiers or ‘...’ before string constant
{} printf("Hello World!");
           ^~~~~~~~~~~~~~

==============================================================
18.
main(){} main(){}

Bug Introduced:main used twice
hello.c:6:5: error: redefinition of ‘main’
int main()
     ^~~~
hello.c:2:5: note: previous definition of ‘main’ was here
int main()
     ^~~~
===============================================================
19.
#printf

Bug Introduced:invalid preprocessor directive used
hello.c:2:2: error: invalid preprocessing directive #printf
#printf("");
^~~~~~

=============================================
20.
int min(){}
Bug Introduced:Min used instead of main
/usr/lib/gcc/x86_64-redhat-linux/8/../../../../lib64/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status

==========================================

spatlou

well done

sandeshgupta4u

Thank you!

shashanktiwariece

hello.c: In function ‘main’:
hello.c:6:1: error: expected ‘;’ before ‘}’ token

==================================

shashanktiwariece

bug: remove f from printf
/tmp/ccgUB1ff.o: In function `main':
hello.c:(.text+0x11): undefined reference to `print'
collect2: error: ld returned 1 exit status

===========================================
bug: remove main
hello.c:2:8: error: expected identifier or ‘(’ before ‘)’ token

===========================================

bug: remove ()
hello.c:3:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token

========================================================
bug: remove curly bracket after main()
hello.c: In function ‘main’:
hello.c:4:2: error: expected declaration specifiers before ‘printf’
hello.c:5:2: error: expected declaration specifiers before ‘return’
hello.c:6:1: error: expected declaration specifiers before ‘}’ token
hello.c:6:1: error: expected ‘{’ at end of input

========================================================

shashanktiwariece

bug: remove curly bracket after program
hello.c: In function ‘main’:
hello.c:5:2: error: expected declaration or statement at end of input
===================================================

bug: remove "" in printf
hello.c: In function ‘main’:
hello.c:4:9: error: ‘hello’ undeclared (first use in this function)
hello.c:4:9: note: each undeclared identifier is reported only once for each function it appears in
hello.c:4:15: error: expected ‘)’ before ‘world’

=========================================================================

bug: remove #
hello.c:1:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘<’ token

==========================================================

bug: remove h in stdio.h
hello.c:1:17: fatal error: stdio.: No such file or directory
compilation terminated.

=========================================

bug: remove >
hello.c:1:17: error: missing terminating > character

======================================

sachinyadav6122

1.

error: expected ‘;’ at end of input

return 0

^

;

=====================================================================

2.

hello.c:5:2: error: expected declaration or statement at end of input

return 0

^~~~~~

=====================================================================

3.

hello.c:5:10: error: expected ‘;’ at end of input

return 0

^

;

=====================================================================

4.

hello.c:5:2: error: expected declaration or statement at end of input

return 0

;

hello.c:5:2: error: expected declaration or statement at end of input

return 0

^~~~~~

=====================================================================

5.

hello.c:4:2: warning: implicit declaration of function ‘prrintf’; did you mean ‘printf’? [-Wimplicit-function-declaration]

prrintf("hello world");

^~~~~~~

printf

=====================================================================

6..

hello.c:2:1: warning: return type defaults to ‘int’ [-Wimplicit-int]

main()

^~~~

=====================================================================

7.

hello.c:6: error: expected ‘{’ at end of input

}

=====================================================================

8.

hello.c:5:4: error: expected ‘;’ before numeric constant

rn 0;

^~

=====================================================================

sachinyadav6122

9.

hello.c:4:21: error: expected statement before ‘)’ token

printf"hello world");

^

=====================================================================

10.

hello.c:3:1: error: expected declaration specifiers or ‘...’ before ‘{’ token

{

^

=====================================================================

11.

hello.c:1:9: fatal error: stdio.h.: No such file or directory

#include<stdio.h.

^

=====================================================================

12.

printf

/tmp/ccv18xjn.o: In function `main':

hello.c:(.text+0xf): undefined reference to `prinft'

collect2: error: ld returned 1 exit status

=====================================================================

13.

hello.c:4:18: error: missing terminating " character

prinfhello world");

^~~

hello.c:5:9: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘return’

return 0;

=====================================================================

14.

hello.c:3:1: error: expected identifier or ‘(’ before ‘{’ token

{

^

=====================================================================

15.

hello.c:4:22: error: expected ‘;’ before ‘return’

prinf("hello world")

^

;

=====================================================================

16.

hello.c:5:16: error: invalid suffix "f" on integer constant

return 0f;

=====================================================================

sachinyadav6122

17.

hello.c:5:4: error: expected ‘;’ before ‘return’

123 return 0;

^ ~~~~~~

=====================================================================

18.

hello.c:5:10: error: expected ‘;’ before numeric constant

turn 0;

^~

=====================================================================

19.

hello.c:4:2: warning: implicit declaration of function ‘f’ [-Wimplicit-function-declaration]

f("hello world");

^

/tmp/cc0IcZe7.o: In function `main':

hello.c:(.text+0xf): undefined reference to `f'

collect2: error: ld returned 1 exit status

=====================================================================

20.

hello.c:5:10: error: expected ‘;’ before ‘}’ token

retur

^

=====================================================================

21.

hello.c:5:10: error: expected ‘;’ before ‘}’ token

retur

^

=====================================================================

22.

hello.c:5:12: warning: returning ‘char *’ from a function with return type ‘int’ makes integer from pointer without a cast [-Wint-conversion]

return "0";

chahatverma514

1.

error: too few arguments to function ‘printf’

printf();

^~~~~~

===================================================

2.

error: expected identifier or ‘(’ before ‘{’ token

{

===================================================

3.

error: expected ‘;’ before ‘i’

printf i(hello world);

^

===================================================

4.

expected ‘)’ before ‘;’ token

return0;

===================================================

5.

error: missing terminating " character

printf ("hello world):

^~~~~~~~~~~~~~

===================================================

6.

error: ‘return0’ undeclared (first use in this function)

return0:

^~~~~~~

===================================================

7.

error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token

{

^

===================================================

8.

error: unknown type name ‘in’; did you mean ‘int’?

in main

^~

===================================================

chahatverma514

9.

fatal error: stdio,h: No such file or directory

#include<stdio,h>

^~~~~~~~~

===================================================

10.

error: missing terminating > character

#include<stdio.h

^

===================================================

11.

error: expected declaration specifiers or ‘...’ before string constant

printf("hello world/n");

^~~~~~~~~~~~~~~

===================================================

12.

error: expected ‘]’ before ‘;’ token

printf("hello world/n");

^

===================================================

13.

expected ‘const char * restrict’ but argument is of type ‘int’

extern int printf (const char *__restrict __format, ...);

^~~~~~

===================================================

14.

error: expected ‘;’ before ‘return’

return 0;

^~~~~~

===================================================

15.

error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘<’ token

include<stdio.h>

===================================================

16.

return0’ undeclared (first use in this function)

return0;

^~~~~~~

===================================================

17.

error: invalid preprocessing directive #<

#<stdio.h>

^

===================================================

18.

error: expected declaration specifiers before ‘printf’

printf("hello world/n";

^~~~~~

===================================================

19.

chahatverma514chahatverma514 12:20PM

error: expected declaration specifiers before ‘return’

return 0;

^~~~~~

===================================================

20.

error: unknown type name ‘print’; did you mean ‘int’?

print F("hello world/n";

^~~~~

===================================================

21.

error: expected declaration specifiers before ‘printF’

printF("hello world/n";

^~~~~~

shashanktiwariece

bug: remove <
hello.c:1:10: error: #include expects "FILENAME" or <FILENAME>
hello.c: In function ‘main’:
hello.c:4:2: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]

==========================================================================
bug: remove include
hello.c:1:3: error: invalid preprocessing directive #<
hello.c: In function ‘main’:
hello.c:4:2: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]

=========================================================================

bug: remove stdio.h
hello.c:1:10: error: empty filename in #include
hello.c: In function ‘main’:
hello.c:4:2: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default]

=========================================================================

hello.c:1:18: fatal error: stdioh: No such file or directory
compilation terminated.

=========================================

bug: remove "
hello.c: In function ‘main’:
hello.c:4:9: error: ‘hello’ undeclared (first use in this function)
hello.c:4:9: note: each undeclared identifier is reported only once for each function it appears in
hello.c:4:15: error: expected ‘)’ before ‘world’
hello.c:4:20: warning: missing terminating " character [enabled by default]
hello.c:4:15: error: missing terminating " character
hello.c:6:1: error: expected ‘;’ before ‘}’ token

=======================================================================

hello.c: In function ‘main’:
hello.c:5:1: warning: control reaches end of non-void function [-Wreturn-type]

==========================================================

hello.c: In function ‘main’:
hello.c:5:2: warning: ‘return’ with no value, in function returning non-void [-Wreturn-type]

===================================================================

hello.c:2:3: warning: return type defaults to ‘int’ [-Wreturn-type]

================================================

hello.c: In function ‘main’:
hello.c:4:2: warning: statement with no effect [-Wunused-value]

===============================================

akshaymisra97

1) Bug – Removed
semicolon from a printf statement

Error –
expected ‘;’ before ‘return’

2) Bug – Added
semicolon to main function defination

Error –
expected identifier or ‘(‘ before ‘{‘ token

3) Bug – Removed
closing braces of a function

Error –
expected declaration or statement at end of input

4) Bug - # is
removed

Error –
expected ‘=’, ’-’, ’;’, ‘asm’, ‘_attribute_’
before ‘<’ token

5) Bug – main body
is removed

Error - expected
identifier or ‘(‘ before ‘{‘ token

6) Bug – .h is
removed

Error – no
such file or directory

7) Bug – include
keyword is removed

Error –
invalid preprocessing directive

8) Bug –
parenthesis of printf function are removed

Error –
expected ‘;’ before string constant

9) Bug - parenthesis
of main function are removed

Error - expected
‘=’, ’-’, ’;’, ‘asm’, ‘_attribute_’ before ‘<’
token

10) Bug – stdio is
removed

Error - no
such file or directory

11) Bug - < and >
are removed in header declaration

Error -
#include expects “FILENAME” or <FILENAME>

12) Bug – braces
are removed in main body

Error –
expected declaration specifier before ‘printf’ and ‘return’

13) Bug – print is
used instead of printf

Error – ld
returned 1 exit status

14) Bug - : is used
for termination

Error -
expected ‘;’ before ‘:’ token

15) Bug - “ used
to end header declaration instead of >

Error –
missing terminating > character

16) Bug – no space
between return and 0

Error –
return0 undeclared

17) Bug – . is
removed between stdio and h

Error –
stdioh:no such fie or directory

18) Bug –
parenthesis are used to make a block in the main body

Error – main
declared as a function returning a function

19) Bug - * is used
at the beginning of the header declaration

Error -
expected ‘=’, ’-’, ’;’, ‘asm’, ‘_attribute_’
before ‘<’ token

20) Bug - \ is
written in printf argument

Error –
missing terminating “ character

p { margin-bottom: 0.25cm; line-height: 115%; }

lakshyabhardwaj

p { margin-bottom: 0.1in; line-height: 120%; }a:link { }

1. Bug: # removed

Error: expected
‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before
‘<’ token

2. Bug: <
removed

Error: invalid
preprocessing directive #includestdio; did you mean #include?

3. Bug: ( removed

Error: expected
‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before
‘)’ token

4. Bug: { removed

Error: expected
declaration specifiers before ‘}’ token }

5. Bug: f removed

Error: ld
returned 1 exit status

6. Bug: “ removed

Error: missing
terminating " character printf(helllo world \n");

7. Bug: ; removed

Error: expected
‘;’ before ‘return’ return 0;

8. Bug: . removed
from stdio.h

Error: No such
file or directory #include<stdioh>

9. Bug: main removed

Error: expected
identifier or ‘(’ before ‘)’ token int()

10. Bug: h removed
from stdio

Error: stdio.:
No such file or directory #include<stdio.>

11. Bug: print
removed

Error: ld
returned 1 exit status

12. Bug: include
removed

Error: include
‘<stdio.h>’ or provide a declaration of ‘printf’

13. Bug: >
removed

Error: invalid
preprocessing directive #includestdio; did you mean #include?

14. Bug: ) removed

Error:
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘)’ token

15. Bug: } removed

Error:
expected declaration specifiers before ‘}’ token }

16. Bug: return
spelling mistake

Error: ‘retrn’
undeclared (first use in this function); did you mean ‘rewind’?

17. Bug: ” removed

Error: missing
terminating " character printf(helllo world \n");

p { margin-bottom: 0.1in; line-height: 120%; }

18. Bug: include
spelling mistake

Error: ‘retrn’
undeclared (first use in this function); did you mean ‘rewind'?

p { margin-bottom: 0.1in; line-height: 120%; }

19. Bug: n removed
from\n

Error: missing
terminating " character printf("hello world\");

20. Bug: main
spelling mistake

Error: ld
returned 1 exit status

mohit.singla139

1.

Bug:- Removed # of
header file

Error:- hello.c:1:9:
error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘<’ token

2.

Bug:- Removed ‘{‘
below int main

Error:- hello.c:9:
error: expected ‘{’ at end of input

3.

Bug:- Removed ‘}’
before return 0

Error:- hello.c: In
function ‘main’:

hello.c:6:1: error:
expected declaration or statement at end of input

4.

Bug:- Removed ‘;’ before return 0

Error:- hello.c: In
function ‘main’:

hello.c:6:9: error:
expected ‘;’ before ‘}’ token

return 0

5.

Bug:- Removed “ in
printf

Error:-
hello.c:5:21: error: missing terminating " character

printf(Hello
Mohit\n");

6.

Bug:- Removed ‘(‘
of main

Error:- hello.c:3:9:
error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘)’ token

int main)

7.

Bug:- Removed ‘)’
of main

Error:- hello.c:4:1:
error: expected declaration specifiers or ‘...’ before ‘{’
token

{

8.

Bug:- Removed ‘;’
after return 0

Error:- hello.c: In
function ‘main’:

hello.c:6:9: error:
expected ‘;’ before ‘}’ token

9. Removed ‘<’ before stdio.h

Bug:-

Error:-
hello.c:1:10: error: #include expects "FILENAME" or
<FILENAME>

#include stdio.h>

10.

Bug:- wrote in
instead of int

Error:- hello.c:3:1:
error: unknown type name ‘in’; did you mean ‘int’?

in main()

11.

Bug:- Inserted ;
after main()

Error:- hello.c:4:1:
error: expected identifier or ‘(’ before ‘{’ token

{

12.

Bug:- Removed . of
stdio.h

Error:- hello.c:4:1:
error: expected identifier or ‘(’ before ‘{’ token

hello.c:1:10: fatal
error: stdioh: No such file or directory

13.

Bug:- Removed space
between int main

Error:- hello.c:3:1:
warning: return type defaults to ‘int’ [-Wimplicit-int]

intmain()

14.

Bug:- Removed ‘u’
from return

Error:- hello.c:6:1:
error: ‘retrn’ undeclared (first use in this function); did you
mean ‘rewind’?

retrn 0;

15.

Bug:- Removed ‘n’
of main

Error:- hello.c:1:2:
error: invalid preprocessing directive #incude; did you mean
#include?

hello.c: In function
‘min’:

16.

Bug:- Added extra {

Error:- hello.c:1:2:
error: invalid preprocessing directive #incude; did you mean
#include?

#incude <stdio.h>

17.

Bug:- inserted /
extra

Error:- hello.c:2:1:
error: expected identifier or ‘(’ before ‘/’ token

/

18.

Bug:- used ##
instead of #

Error:- hello.c:1:1:
error: stray ‘##’ in program

##include <stdio.h>

19.

Bug:- inserted “
extra in printf

Error:-
hello.c:5:23: warning: missing terminating " character

printf("Hello
Mohit\n"");

20.

Bug:- wrote : after
printf() instead of ;

Error:-
hello.c:5:24: error: expected ‘;’ before ‘:’ token

printf("Hello
Mohit\n"):

p { margin-bottom: 0.1in; line-height: 115%; }

ankitvats846

1 Bug : Remove # from header file

Error : expected =expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘<’ token

2 Bug
: wrote iclude instead of include

Error : invalid preprocessing directive #iclude

3 Bug
: removed “< >” #includestdio.h

Error : error: invalid preprocessing directive #includestdio;

4
Bug : remove “.” #include<stdidh>

Error : fatal error: stdidh: No such file or directory

5
Bug : add terminator “int main():”

Error : error: expected declaration specifiers before ‘:’ token

6
Bug : wrote “it” instead of ‘int” it main()

Error : error: unknown type name ‘it’

7
Bug : removed main function “{“

Error : expected declaration specifiers before ‘}’ token

8
Bug : remove closed bracket “()” printf"hello\n";

Error : expected ‘;’ before string constant

9 Bug
: Removed (“ “) under printf

error : ‘hello’ undeclared (first use in this function);

10 Bug :
Add teminator “:” printf("hello/n");:

“

Error : error: expected expression before ‘:’ token

11 Bug :
Removed “;” printf("hello/n")

Error : expected ‘;’ before ‘return”

12 Bug :
wrote turn instead of return turn 0;

Error
: expected ‘;’ before numeric constant

13 Bug :
wrote “t0” instead of 0

Error : error: ‘t0’ undeclared (first use in this function)

14 Bug :
add 9 between main ()

Error : error: expected declaration specifiers or ‘...’ before
numeric constant

int main(9)

15 Bug :
Missed space between ‘return and 0’

Error : error: ‘returno’ undeclared (first use in this function)

h3.western { font-family: "Liberation Sans", sans-serif; font-size: 14pt; }h3.cjk { font-family: "Source Han Sans CN Regular"; font-size: 14pt; }h3.ctl { font-family: "Lohit Devanagari"; font-size: 14pt; }p { margin-bottom: 0.1in; line-height: 115%; }

jatin98batra

Sorry for late entry.
1.
Bug:
Including an unknown header
Error: fatal
Error: No such file in Directory
2.
Bug:
Not including preprocessor
Error:
expected’=’, ‘,’, ’;’ ‘asm’ or __attribute__
‘before’ ’<’ token include<stdio.h>

3.
Bug: Not
writing “.h” in the end of header file
Error:
No such file in Directory
4.
Bug:
Removing “hash_Include”
Error:expected
identifier or ‘(’ before ‘{’ ‘<’ token <stdio.h>
5.
Bug:
Removed “int main()”
Error:Expected
identifier or ‘(’ before ‘{’ token {

6.
Bug:
Writing a numeric constant as
argument in main( )

Error:
expected declaration specifier or ‘...’ before numeric constant
int main(1)

7.
Bug:
Written “print ” instead of “printf”
Error: No
error just a warning but no executable file is generated

8.
Bug:
Removed ‘ “ ’ from printf statement

Errors:
error: ‘Hello’ undeclared (first use in this function)
printf(Hello World\n");

error: expected ‘)’ before ‘World’ printf(Hello World\n");error: stray ‘\’ in program printf(Hello World\n");

error: missing terminating " character printf(Hello World\n");

error: expected ‘;’ before ‘}’ token }

9.
Bug:
Removed semicolon from printf
statement
Error:
error: expected ‘;’ before ‘return’ return;

10.
Bug: Wrote
any character instead of ‘0’ in ‘return 0’
Error: ‘a’
undeclared (first use in this function) return a;

11.
Bug: Removed
the right parenthesis in function “printf()”

Error:error:
expected ‘)’ before ‘;’ token

printf("Hello World\n";

Basic_Template.c:11:1: error: expected ‘;’
before ‘}’ token

}

12.
Bug: Displaced
the right parenthesis before the closing double quote

Error:error:
expected ‘)’ before ‘;’ token

printf("Hello World\n";
Basic_Template.c:11:1: error: expected ‘;’
before ‘}’ token

}
13.
Bug:
Added the equals to in
between the header file and left angular bracket in header
declaration
Error:
#include expects "FILENAME" or <FILENAME>

#include = <stdio.h>
14.
Bug: Removed
Curly Bracket
Error:
error: expected declaration or statement at end of input
return 0;

15.Bug: Removed
‘.’ and added ‘, ’ in include statement

fatal error: stdio,h:
No such file or directory

#include <stdio,h>
16.
Bug: Removed
‘n’ in the printf statement that was used for the new line
Error:error:
expected expression before ‘return’

return 0;

Basic_Template.c:9:1: error: expected ‘;’
before ‘}’ token

17.
Bug: Adding
another curly brace in the end of the block
Error: expected identifier or ‘(’
before ‘}’ token }

18.
Bug: Adding
‘ ) ’ (right parenthesis) instead of curly brace
Error:
error: expected statement
before ‘)’ token )
error:
expected declaration or statement at end of input

jatin98batra

Last 2 :
19.
Bug: Used colon instead of semicolon
Error:error: expected ‘;’ before ‘:’ token
return 0:
20.
Bug:Incomplete comment used a single backslash , unintentionally
Error: error: expected expression before ‘/’ token
/return 0;

icbansalthana1074

Bug – remove
‘#’ from program,

1 error - expected
‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before
‘<’ token

bug – remove
‘\’

2 stray ‘\’ in
program

printf("hello
world"\)

bug: remove ‘
n’

3 expected ‘;’
before ‘return’

printf("hello
world"\)

bug: missing
‘”’ after \

4 missing
terminating " character

printf("hello world\");

bug:remove ‘;’after printf

5 expected
expression before ‘return’

return 0 ;

bug missing
termination sign i.e. ;

6 expected ‘;’
before ‘}’ token

return 0 ;

bug: remove
‘{‘after main

7 expected
declaration or statement at end of input

bug: retn used
instead of return

8 retn’
undeclared (first use in this function); did you mean ‘getw’?

Retn 0;

bug:add ‘else
if’ before printf

9 ‘else’
without a previous ‘if’

else
ifprintf("hello world \n");

bug: remove ‘;’
at the end of int main

10 expected ‘;’
before numeric constant

retur 0;

bug
Adding

‘ ) ’ (right parenthesis) instead of curly brace

11;error:
expected statementbefore ‘)’ token )

Bug: Used colon instead of semicolon

12Error:error:
expected ‘;’ before ‘:’ token

return 0:

bug:remvoe ‘ “’ in hello world world in print

13 hello’ undeclared (first use in this function); did you

mean ‘ftello’? printf(hello world \n");

bug:remove ‘print’

14 expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’
before ‘<’ token

include<stdio.h>

bug:add extra bracket outside the closing main function ‘}’

15 expected identifier or ‘(’ before ‘return’

return 0;

bug: remove ‘return 0’ from program

16 expected identifier or ‘(’ before ‘}’ token

}

bug: add an extra brecket befor starting the program

17 expected identifier or ‘(’ before ‘{’ token

{include<stdio.h>

bug:add conio .h in program

18 conio.h: No such file or directory

#include<conio.h>

bug: add ‘while loop’ in program

19 expected expression before ‘)’ token

while()

bug:add ‘do while loop’in program

20 expected declaration or statement at end of input

}

bug:add ‘extra\’ in

21 stray ‘\’ in program

enter elements (asjdf\\\\\\\\\\)

p { margin-bottom: 0.1in; line-height: 115%; }a:link { }

vikas.talan

21

satinder.joshi1991

ERROR:1

REMOVE:#

BUG:sam.c:1:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’
or ‘__attribute__’ before ‘<’ token

include<stdio.h>

^

ERROR:2

REMOVE:() FROM INT MAIN

BUG:sam.c:3:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’
or ‘__attribute__’ before ‘{’ token

{

^

ERROR:3

REMOVE 0:

BUG:sam.c: In function ‘main’:

sam.c:5:1: warning: ‘return’ with no value, in function
returning non-void

return ;

^~~~~~

sam.c:2:5: note: declared here

int main()

^~~~

ERROR:4

REMOVE . FROM #INCLUDE<STDIO.H>

BUG:sam.c:1:9: fatal error: stdioh: No such file or directory

#include<stdioh>

^~~~~~~~

compilation terminated.

ERROR:5

REMOVE >from stdio.h>

BUG:sam.c:1:17: error: missing terminating > character

#include<stdio.h

^

ERROR:6

REMOVE < FROM #INCLUDE <STDIO.H>

BUG:sam.c:1:2: error: invalid preprocessing directive
#includestdio; did you mean #include?

#includestdio.h>

^~~~~~~~~~~~

include

sam.c: In function ‘main’:

sam.c:4:1: warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf("hello everyone/n");

^~~~~~

sam.c:4:1: warning: incompatible implicit declaration of built-in
function ‘printf’

sam.c:4:1: note: include ‘<stdio.h>’ or provide a
declaration of ‘printf’

ERROR:7

p { margin-bottom: 0.25cm; line-height: 120%; }

vinaysehrawat92

1.ERROR-Removed #
from first statement

BUG-vinay.c:1:8:
error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘<’ token

include<stdio.h>

^

2.ERROR-Removed <
from first statement

BUG-vinay.c:1:2:
error: invalid preprocessing directive #includestdio; did you mean
#include?

#includestdio.h>

^~~~~~~~~~~~

include

vinay.c: In
function ‘main’:

vinay.c:4:1:
warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf
("helloworld/n");

^~~~~~

vinay.c:4:1:
warning: incompatible implicit declaration of built-in function
‘printf’

vinay.c:4:1:
note: include ‘<stdio.h>’ or provide a declaration of
‘printf’

3.ERROR-Removed
. From stdio.h

BUG-vinay.c:1:9:
fatal error: stdioh: No such file or directory

#include<stdioh>

^~~~~~~~

compilation
terminated.

4.ERROR-Removed >
from <stdio.h>

BUG-vinay.c:1:17:
error: missing terminating > character

#include<stdio.h

5.ERROR-Removed
( after the word main

BUG-vinay.c:2:9:
error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘)’ token

int main)

6.ERROR-Removed )
after main

BUG-vinay.c:3:1:
error: expected declaration specifiers or ‘...’ before ‘{’
token

{

^

7.ERROR-Removed {
above printf

BUG-vinay.c: In
function ‘main’:

vinay.c:4:1:
error: expected declaration specifiers before ‘printf’

printf
("helloworld/n");

^~~~~~

vinay.c:5:1:
error: expected declaration specifiers before ‘return’

return 0;

^~~~~~

vinay.c:6:1:
error: expected declaration specifiers before ‘}’ token

}

^

vinay.c:6:1:
error: expected ‘{’ at end of input

8.ERROR-Removed (
before helloworld

BUG-vin.c: In
function ‘main’:

vin.c:4:7: error:
expected ‘;’ before string constant

printf"helloworld/n");

^~~~~~~~~~~~~~

vin.c:4:21:
error: expected statement before ‘)’ token

printf"helloworld/n");

^

9.ERROR-Removed )
after helloworld

BUG-vin.c: In
function ‘main’:

vin.c:4:22:
error: expected ‘)’ before ‘;’ token

printf("helloworld/n";

^

vin.c:6:1: error:
expected ‘;’ before ‘}’ token

}

^

10.ERROR-Removed
; after helloworld

BUG-vin.c: In
function ‘main’:

vin.c:5:1: error:
expected ‘;’ before ‘return’

return 0;

^~~~~~

satinder.joshi1991

ERROR:7

REMOVE {

BUG:sam.c: In function ‘main’:

sam.c:4:1: error: expected declaration specifiers before ‘printf’

printf("hello everyone/n");

^~~~~~

sam.c:5:1: error: expected declaration specifiers before ‘return’

return 0 ;

^~~~~~

sam.c:6:1: error: expected declaration specifiers before ‘}’
token

}

^

sam.c:6:1: error: expected ‘{’ at end of input

ERROR:8

REMOVE }

BUG:sam.c: In function ‘main’:

sam.c:5:1: error: expected declaration or statement at end of
input

return 0 ;

^~~~~~

ERROR:9

REMOVE: “

BUG:sam.c: In function ‘main’:

sam.c:4:8: error: ‘hello’ undeclared (first use in this
function); did you mean ‘ftello’?

printf(hello everyone/n");

^~~~~

ftello

sam.c:4:8: note: each undeclared identifier is reported only once
for each function it appears in

sam.c:4:14: error: expected ‘)’ before ‘everyone’

printf(hello everyone/n");

^~~~~~~~

sam.c:4:24: warning: missing terminating " character

printf(hello everyone/n");

^

sam.c:4:24: error: missing terminating " character

printf(hello everyone/n");

^~~

sam.c:6:1: error: expected ‘;’ before ‘}’ token

}

^

ERROR:10

REMOVE ; FROM RETURN 0;

BUG:sam.c: In function ‘main’:

sam.c:6:1: error: expected ‘;’ before ‘}’ token

}

^

ERROR:11

REMOVE ; FROM PRINT F

BUG:sam.c: In function ‘main’:

sam.c:5:1: error: expected ‘;’ before ‘return’

return 0;

^~~~~~

ERROR:12

NO SPACE BETWEEN RETURN 0

BUG:sam.c: In function ‘main’:

sam.c:5:1: error: ‘return0’ undeclared (first use in this
function)

return0 ;

^~~~~~~

sam.c:5:1: note: each undeclared identifier is reported only once
for each function it appears in

ERROR:13

REMOVE F FROM PRINT F

BUG:sam.c: In function ‘main’:

sam.c:4:1: warning: implicit declaration of function ‘print’;
did you mean ‘printf’? [-Wimplicit-function-declaration]

print("hello everyone/n");

^~~~~

printf

/tmp/ccR5AnbG.o: In function `main':

sam.c:(.text+0xf): undefined reference to `print'

collect2: error: ld returned 1 exit

p { margin-bottom: 0.25cm; line-height: 120%; }

satinder.joshi1991

ERROR:14

REMOVE .H FROM # INCLUDE STDIO.H

BUG:sam.c:1:9: fatal error: stdio: No such file or directory

#include<stdio>

^~~~~~~

compilation terminated.

ERROR:15

REMOVE INT FROM INT MAIN()

BUG:sam.c:2:2: warning: return type defaults to ‘int’
[-Wimplicit-int]

main()

^~~~

ERROR:16

REMOVE THE BREACKET () FROM (HELLO WORLD)

BUG:sam.c: In function ‘main’:

sam.c:4:7: error: expected ‘;’ before string constant

printf"hello everyone/n";

^~~~~~~~~~~~~~~~~~

ERROR:17

NO SPACE BETWEEN RETURN 0

BUG:sam.c: In function ‘main’:

sam.c:5:1: error: ‘return0’ undeclared (first use in this
function)

return0 ;

^~~~~~~

sam.c:5:1: note: each undeclared identifier is reported only once
for each function it appears in

ERROR:18

REMOVE N” FROM PRINT F (HELLO WORLD/N”);

BUG:sam.c: In function ‘main’:

sam.c:4:8: warning: missing terminating " character

printf("hello everyone/);

^

sam.c:4:8: error: missing terminating " character

printf("hello everyone/);

^~~~~~~~~~~~~~~~~~

sam.c:5:1: error: expected expression before ‘return’

return 0;

^~~~~~

sam.c:6:1: error: expected ‘;’ before ‘}’ token

}

^

ERROR:19

SPACE BETWEEN PRINT F

BUG:sam.c: In function ‘main’:

sam.c:4:1: error: unknown type name ‘print’; did you mean
‘int’?

print f("hello everyone/n");

^~~~~

int

sam.c:4:9: error: expected declaration specifiers or ‘...’
before string constant

print f("hello everyone/n");

^~~~~~~~~~~~~~~~~~

ERROR:20

REMOVE ) FROM INT MAIN()

BUG:sam.c:3:1: error: expected declaration specifiers or ‘...’
before ‘{’ token

{

^

p { margin-bottom: 0.25cm; line-height: 120%; }

vinaysehrawat92

11.ERROR-Removed
0 after return

BUG-vin.c: In
function ‘main’:

vin.c:5:1:
warning: ‘return’ with no value, in function returning non-void

return ;

^~~~~~

vin.c:2:5: note:
declared here

int main()

^~~~

12.ERROR-Removed
; after return 0

BUG-vin.c: In
function ‘main’:

vin.c:6:1: error:
expected ‘;’ before ‘}’ token

}

^

13.ERROR-Removed
last }

BUG-vin.c: In
function ‘main’:

vin.c:5:1: error:
expected declaration or statement at end of input

return 0;

^~~~~~

14.ERROR-spelling
error in include

BUG-vin.c:1:2:
error: invalid preprocessing directive #nclude; did you mean
#include?

#nclude<stdio.h>

^~~~~~

include

vin.c: In
function ‘main’:

vin.c:4:1:
warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf("helloworld/n");

^~~~~~

vin.c:4:1:
warning: incompatible implicit declaration of built-in function
‘printf’

vin.c:4:1: note:
include ‘<stdio.h>’ or provide a declaration of ‘printf’

15.ERROR-NO space
given between int and main

BUG-vin.c:2:1:
warning: return type defaults to ‘int’ [-Wimplicit-int]

intmain()

^~~~~~~

/usr/lib/gcc/x86_64-redhat-linux/7/../../../../lib64/crt1.o:
In function `_start':

(.text+0x20):
undefined reference to `main'

collect2: error:
ld returned 1 exit status

16.ERROR-Removed
f from printf

BUG-vin.c: In
function ‘main’:

vin.c:4:1:
warning: implicit declaration of function ‘print’; did you mean
‘printf’? [-Wimplicit-function-declaration]

print
("helloworld/n");

^~~~~

printf

/tmp/cc1CZWAf.o:
In function `main':

vin.c:(.text+0xf):
undefined reference to `print'

collect2: error:
ld returned 1 exit status

17.ERROR-No space
given between return and 0

BUG-vin.c: In
function ‘main’:

vin.c:5:1: error:
‘return0’ undeclared (first use in this function)

return0;

^~~~~~~

vin.c:5:1: note:
each undeclared identifier is reported only once for each function it
appears in

18.ERROR-Removed
int main() from the program

BUG-vin.c:3:1:
error: expected identifier or ‘(’ before ‘{’ token

{

^

19.ERROR-Removed
both { from the program

BUG-vin.c: In
function ‘main’:

vin.c:4:1: error:
expected declaration specifiers before ‘printf’

printf
("helloworld/n");

^~~~~~

vin.c:5:1: error:
expected declaration specifiers before ‘return’

return 0;

^~~~~~

vin.c:5:1: error:
expected ‘{’ at end of input

20.ERROR-Removed
both the ; in the program

BUG-vin.c: In
function ‘main’:

vin.c:5:1: error:
expected ‘;’ before ‘return’

return 0

^~~~~~

p { margin-bottom: 0.25cm; line-height: 120%; }

ranjan.amit29

Error:1

Removed .
From stdio.h statement

Bug:
helo.c:2:9: fatal error: stdioh: No such file or directory

#include<stdioh>

^~~~~~~~

compilation
terminated.

Error:2

Removed
#
from the 1^st
line

Bug:
helo.c:1:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’
or ‘__attribute__’ before ‘<’ token

include<stdio.h>

Error:3

Removed
space from int main

Bug:
helo.c:2:1: warning: return type defaults to ‘int’
[-Wimplicit-int]

intmain()

^~~~~~~

/usr/lib/gcc/x86_64-redhat-linux/7/../../../../lib64/crt1.o:
In function `_start':

(.text+0x20):
undefined reference to `main'

collect2:
error: ld returned 1 exit status

Error
:4

Removed
{ from the statement

Bug:
helo.c: In function ‘main’:

helo.c:4:1:
error: expected declaration specifiers before ‘printf’

printf("welcome
to new york/n");

^~~~~~

helo.c:5:1:
error: expected declaration specifiers before ‘return’

return
0;

^~~~~~

helo.c:6:1:
error: expected declaration specifiers before ‘}’ token

}

^

helo.c:6:1:
error: expected ‘{’ at end of input

Error:5

Put
space in prinf statement

Bug:
helo.c: In function ‘main’:

helo.c:3:1:
error: expected declaration specifiers before ‘}’ token

}

^

helo.c:5:1:
error: unknown type name ‘print’; did you mean ‘int’?

print f("welcome to
new york/n");

^~~~~

int

helo.c:5:9:
error: expected declaration specifiers or ‘...’ before string
constant

print f("welcome to
new york/n");

^~~~~~~~~~~~~~~~~~~~~~~

helo.c:6:1:
error: expected declaration specifiers before ‘return’

return 0;

^~~~~~

helo.c:7:1:
error: expected declaration specifiers before ‘}’ token

}

^

helo.c:7:1:
error: expected ‘{’ at end of input

p { margin-bottom: 0.25cm; line-height: 120%; }

ranjan.amit29

Error:6

Removed
; from the statement

Bug:
amit.c: In function ‘main’:

amit.c:6:1:
error: expected ‘;’ before ‘return’

return
0;

^~~~~~

Error:7

Removed
“ from the statement

Bug:amit.c:
In function ‘main’:

amit.c:5:8:
error: ‘hello’ undeclared (first use in this function); did you
mean ‘ftello’?

printf(hello
nyc/n");

^~~~~

ftello

amit.c:5:8:
note: each undeclared identifier is reported only once for each
function it appears in

amit.c:5:14:
error: expected ‘)’ before ‘nyc’

printf(hello
nyc/n");

^~~

amit.c:5:19:
warning: missing terminating " character

printf(hello
nyc/n");

amit.c:5:19:
error: missing terminating " character

printf(hello
nyc/n");

amit.c:8:1:
error: expected ‘;’ before ‘}’ token}

Error:8

Removed
0 from return 0

Bug:
amit.c: In function ‘main’:

amit.c:6:1:
warning: ‘return’ with no value, in function returning non-void

return;

^~~~~~

amit.c:3:5:
note: declared here

int
main()

^~~~

Error:9

Removed
() from int main

Bug:amit.c:4:1:
error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘{’ token

{^

Error:10

Removed
> from the first line

Bug:amit.c:2:17:
error: missing terminating > character

#include<stdio.h^

Error
:11

spelling
mistake in int main

Bug:
/usr/lib/gcc/x86_64-redhat-linux/7/../../../../lib64/crt1.o: In
function `_start':

(.text+0x20):
undefined reference to `main'

collect2:
error: ld returned 1 exit status

Error:12

Removed
space done in int main
function

Bug:amit.c:3:1:
warning: return type defaults to ‘int’ [-Wimplicit-int]

intmain()

/usr/lib/gcc/x86_64-redhat-linux/7/../../../../lib64/crt1.o:
In function `_start':(.text+0x20):
undefined reference to `main'

collect2:
error: ld returned 1 exit status

Error:13

Removed
; from return 0; function

Bug:amit.c:
In function ‘main’:

amit.c:8:1:
error: expected ‘;’ before ‘}’ token

}

utkarshraj273

Error 1:- include<stdio.h> (# missing) Hello.c:2:8: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘<’ token include<stdio.h>

p { margin-bottom: 0.25cm; line-height: 120%; }p { margin-bottom: 0.25cm; line-height: 120%; }p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 2- main is removed [int ………... ()] Hello.c:3:6: error: expected identifier or ‘(’ before ‘)’ token int ()

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 3: f is removed from printf Hello.c: In function ‘main’: Hello.c:6:1: warning: implicit declaration of function ‘print’; did you mean ‘printf’? [-Wimplicit-function-declaration] print("Hello\n"); ^~~~~ printf /tmp/ccRSgTUC.o: In function `main': Hello.c:(.text+0xf): undefined reference to `print' collect2: error: ld returned 1 exit status Error 4:- Curly Braces are removed from the end of program. Hello.c: In function ‘main’: Hello.c:7:3: error: expected declaration or statement at end of input return 0;

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 5:- removed braces from Hello Hello.c: In function ‘main’: Hello.c:6:7: error: expected ‘;’ before string constant printf"Hello\n" Error 6:- printf("Hello\n)"; Hello.c: In function ‘main’: Hello.c:6:18: error: expected ‘)’ before ‘;’ token printf("Hello\n)"; ^ Hello.c:9:1: error: expected ‘;’ before ‘}’ token

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 5:-
removed braces from H

p { margin-bottom: 0.25cm; line-height: 120%;

Hello.c: In function ‘main’:

Hello.c:6:7: error: expected ‘;’ before string constant

printf"Hello\n"

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error
6:- printf("Hello\n)":

Hello.c: In function ‘main’:

Hello.c:6:18: error: expected ‘)’ before ‘;’ token

printf("Hello\n)";

^

Hello.c:9:1: error: expected ‘;’ before ‘}’ token

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 7:- int
main…... (braces missing)

Hello.c:3:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘{’ token

{

^

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 8:- ……..main()
(int is missing)

Hello.c:3:2:
warning: return type defaults to ‘int’ [-Wimplicit-int]

main()

Error 9:- Semicolon removed

#include
<stdio.h>

int
main()

{

printf("hello\n")

return 0

}

Hello.c: In function
‘main’:

Hello.c:5:3: error:
expected ‘;’ before ‘return’

return 0

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 10:-
#include<stdioh> ( dot missing before h)

Hello.c:1:9: fatal error: stdioh: No such file or directory

#include<stdioh>

^~~~~~~~

compilation terminated.

Error
11:- #includestdio.h (bracses <> are missing)

Hello.c:1:2: error: invalid preprocessing directive #includestdio;
did you mean #include?

#includestdio.h

^~~~~~~~~~~~

include

Hello.c: In function ‘main’:

Hello.c:5:1: warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf("Hello\n");

^~~~~~

Hello.c:5:1: warning: incompatible implicit declaration of built-in
function ‘printf’

Hello.c:5:1: note: include ‘<stdio.h>’ or provide a
declaration of ‘printf’

Error
12:- return ; (zero removed)

Hello.c: In function ‘main’:

Hello.c:6:3: warning: ‘return’ with no value, in function
returning non-void

return ;

^~~~~~

Hello.c:2:5: note: declared here

int main()

^~~

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 13:- f("Hello\n"); (print is
removed from printf)

Hello.c: In function ‘main’:

Hello.c:5:1: warning: implicit declaration of function ‘f’
[-Wimplicit-function-declaration]

f("Hello\n");

^

/tmp/ccqX7hUH.o: In function `main':

Hello.c:(.text+0xf): undefined reference to `f'

collect2: error: ld returned 1 exit status

Error
14 :- printf(Hello\n); (double qoutes removed)

Hello.c: In function ‘main’:

Hello.c:5:13: error: stray ‘\’ in program

printf(Hello\n);

^

Hello.c:5:8: error: ‘Hello’ undeclared (first use in this
function); did you mean ‘ftello’?

printf(Hello\n);

^~~~~

ftello

Hello.c:5:8: note: each undeclared identifier is reported only once
for each function it appears in

Hello.c:5:14: error: expected ‘)’ before ‘n’

printf(Hello\n)

Error 15:- ( int
main removed )

#include<stdio.h>)

{

printf("Hello\n");

return 0 ;

}

Hello.c:2:1: error: expected identifier or ‘(’ before ‘{’
token

Error 16:-
#include (header file <stdio.h> removed)

Hello.c:1:9: error: #include expects "FILENAME" or
<FILENAME>

#include

^

Hello.c: In function ‘main’:

Hello.c:5:1: warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf("Hello\n");

^~~~~~

Hello.c:5:1: warning: incompatible implicit declaration of built-in
function ‘printf’

Hello.c:5:1: note: include ‘<stdio.h>’ or provide a
declaration of ‘printf’

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

utkarshraj273

Error 17:-
(#include <stdio.h> is removed)

int main()

{

printf("Hello\n");

return 0 ;

}

Hello.c: In function ‘main’:

Hello.c:5:1: warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]

printf("Hello\n");

^~~~~~

Hello.c:5:1: warning: incompatible implicit declaration of built-in
function ‘printf’

Hello.c:5:1: note: include ‘<stdio.h>’ or provide a
declaration of ‘printf’

Error 18:- (curly
braces removed)

#include<stdio.h>

int main()

printf("hello\n");

return 0;

Hello.c: In function ‘main’:

Hello.c:4:1: error: expected declaration specifiers before ‘printf’

printf("hello\n");

^~~~~~

Hello.c:5:2: error: expected declaration specifiers before ‘return’

return 0;

^~~~~~

Hello.c:5:2: error: expected ‘{’ at end of input

p { margin-bottom: 0.25cm; line-height: 120%; }p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

p { margin-bottom: 0.25cm; line-height: 120%; }

Hello World

1 Bug : Remove # from header file

Howdy, Stranger!

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