Query - EmbLogic

Linux system programming
0★ 1B 1E Started by jainh10022000March 6Query

User takes a input from first program and and output from second program so how can we call second program as argument without using argc and argv
Print the double question in C.
0★ 1B 3E Started by mdaliakbarJanuary 23Query

Ans #include int main() { printf("\" \" \n"); return 0; } Key points: \ slash symbol is a sequence break charecter so \ this symbol read as a charecter
Array Store which type of memory?
0★ 3B 5E Most recent by mdaliakbarOctober 2024Query

In java Array store heap memory, but in C program Array store which types of memory?
c++ Basic
0★ 1B 3E Started by dshikha492May 2024Query

Hi, There is a question in part 3 assignment: Sending message to an object is same as the _____________.what is the correct answer in the blank?
How to install GTK terminal on Ubuntu
0★ 1B 32E Started by mohdmohsinkhaneeApril 2024Query

It can be installed using the following command on Ubuntu: sudo apt install gtkterm
Interrupt Service Routine(ISR)
0★ 2B 3E Most recent by mohdmohsinkhaneeFebruary 2024Query

What are the key characteristics distinguish ISR (Interrupt Service Routine) code from general function code in C?
we need to store a particular value at an particular address, how could it be done?
0★ 2B 3E Most recent by mohdmohsinkhaneeJanuary 2024Query

All your answers are welcome.
Inserting a node in tree
0★ 2B 7E Most recent by mohdmohsinkhaneeDecember 2023Query

Iam inserting a node in the tree, while inserting , after n = 1, no further allocation is being done rather the previously allocated nodes are getting overwritten. Below is the code:-#include"h…
Troubleshooting glibc Error in C Program: malloc.c Assertion Fail?
0★ 1B 11E Started by mohdmohsinkhaneeDecember 2023Query

I'm facing a glibc error in my C program while creating a binary tree. The issue occurs during the allocation of memory for a node in creatNode.c. The error points to malloc.c:2593 and includes …
Addressing synchronization issue in the project "Client-Server Communication Using IPC and Threads"
0★ 3B 2E Most recent by mohdmohsinkhaneeDecember 2023Query

In the project "Client-Server Communication using IPC and Threads", before the Vendor sends the latest result to the shared memory, the processRequest() function reads the result as if the …
Unable to understand this question.
0★ 1B 3E Started by gaurav133232December 2023Query

#include #define p(a,b) a##b #define call(x) #x int main(){ do{ int i=15,j=3; printf("%d",p(i-+,+j)); } while(*(call(625)+3)); return 0; } Iam unable to un…
Challenges with Updating Counts in C++ LMS (Library Management System) Project Book Class
0★ 4B 10E Most recent by mohdmohsinkhaneeDecember 2023Query

In the LMS Project, after inserting an entry into the Book class, if I am updating the count by moving the offset to the beginning, reading the current count, and then overwriting the updated value o…
How many types of smart pointers are there?
0★ 2B 2E Most recent by mohdmohsinkhaneeDecember 2023Query

Post all your answers here.
Converting Decimal to binary, hexa,octal
0★ 3B 5E Most recent by gaurav133232December 2023Query

How to convert decimal to binary, hexadecimal and octal without using inbuilt functions.
File Creation and Writing in C++: Opening an Existing File for Writing or Creating a New File
0★ 2B 1E Most recent by sumacangadiDecember 2023Query

In C++, which specific function is commonly employed to open a file for writing and, if the file doesn't already exist, create it in the process?
What is a daemon process?
0★ 2B 5E Most recent by mohdmohsinkhaneeDecember 2023Query

All answers are welcome.
Static member
0★ 2B 5E Most recent by mohdmohsinkhaneeDecember 2023Query

int ObjectCounter::objectCount=0; int main() { ObjectCounter obj1; ObjectCounter obj2(42); ObjectCounter obj3; cout
How to do deque operation in priority queue?
0★ 2B 5E Most recent by mohdmohsinkhaneeDecember 2023Query

I have done till enqueue in the priority queue, but not getting idea for deque, can someone give a hint on deque?
Constructor
0★ 2B 1E Most recent by mohdmohsinkhaneeDecember 2023Query

What is parametrized constructor?
What is the difference between cat and more command?
0★ 2B 2E Most recent by mohdmohsinkhaneeDecember 2023Query

This is an interview question.
Understanding and Troubleshooting strncpy Behavior in C
0★ 1B 7E Started by mohdmohsinkhaneeNovember 2023Query

In C programming, strcpy() and strncpy() are both functions used for string manipulation, but they have some key differences: strcpy(destination, source): Copies the entire source string to the desti…
Client Server Communication using IPC and Threads
0★ 4B 10E Most recent by mohdmohsinkhaneeNovember 2023Query

After implementing thread in server.c to call the process request(), My server is now unable to open process request() . Here is the code reference:while(1) { ret = pthread_cre…
Creating Diamond pattern
0★ 2B 2E Most recent by mohdmohsinkhaneeNovember 2023Query

Can someone give me a hint on how to create diamond pattern?
Understanding the Difference Between Void Pointer and Pointer to a Void
0★ 2B 4E Most recent by sumacangadiNovember 2023Query

Is there a distinction between a void pointer and a pointer to a void ? If yes, discuss it using a suitable example.
Shell Script
0★ 2B 1E Most recent by mohdmohsinkhaneeNovember 2023Query

What is the first line in scripting (#! /bin/bash) and what is its significance?
Structure in C and C++
0★ 2B 2E Most recent by sumacangadiNovember 2023Query

Members of a structure in C have public visibility by default while in C++ they have private visibility by default. Apart from that, are there any more differences in structure between C and C++? If …
Making pattern
0★ 2B 5E Most recent by mohdmohsinkhaneeNovember 2023Query

How to print right arrow pattern using 2d array?
Process Context
0★ 2B 5E Most recent by mohdmohsinkhaneeNovember 2023Query

Which segment of process context can access directly?
Overloading Unary operators in C++
0★ 2B 4E Most recent by sumacangadiNovember 2023Query

using namespace std;class MyCounter{ private: int count; public: MyCounter(); MyCounter(int); int display(); MyCounter operator++(); // PreFix version …
What is the difference between semaphore and mutex?
0★ 2B 3E Most recent by mohdmohsinkhaneeNovember 2023Query

Please answer the query.
MakeFile
0★ 2B 4E Most recent by mohdmohsinkhaneeNovember 2023Query

Q. Is it always necessary that makefile should be saved as by the name "Makefile" in the directory? If try to save it with a different name, throws an error "make: Nothing to be done f…
Usage of Static qualifier in Modular Programming
0★ 2B 7E Most recent by sumacangadiNovember 2023Query

I declared variable int count as "static" in declarations.h file, Now on creating each Node in a LinkList I am incrementing the value of count in the creatNode() and the incremented count i…
device driver issue
0★ 1B 3E Started by ayaz.ahmad003November 2023Query

macro "access_ok" passed 3 arguments, but takes just 2
Threads and Process
0★ 2B 5E Most recent by mohdmohsinkhaneeNovember 2023Query

What is difference between thread and process?
NULL
0★ 2B 3E Most recent by mohdmohsinkhaneeOctober 2023Query

What is NULL?
Array
0★ 2B 3E Most recent by mohdmohsinkhaneeOctober 2023Query

Why does array starts from Zero Index?
asignment1 Q10 caculate the square root of two coordinates
0★ 2B 6E Most recent by gaurav133232August 2023Query

#include 2 #include 3 int main() 4 5 { 6 float x1,y1,x2,y2; 7 float dist; 8 9 printf("Enter the coordinates for first points\n"); 10 scanf…
GPL license issue, for device deriver init
0★ 2B 2E Most recent by gaurav133232August 2023Query

[ 9867.745855] mycdd: loading out-of-tree module taints kernel.[ 9867.745861] mycdd: module verification failed: signature and/or required key missing - tainting kernel[ 9867.746910] myDevInit Begin[…
device driver issue
0★ 1B 3E Started by ayaz.ahmad003August 2023Query

home/ayaz/cdd_01/initFunc.c:8:23: error: conflicting types for ‘fops’; have ‘struct file_operation’ 8 | struct file_operation fops; | ^~~~In file included from /home/aya…
insmod ./modules/mycdd.ko nod=10 insmod: ERROR: could not load module ./modules/mycdd.ko: No such fi
0★ 1B 6E Started by gaurav133232August 2023Query

Check the name of the file you have created and it will resolve the issue, or check the directory you are in.
multiple data compression
0★ 2B 3E Most recent by mohammaduvais143August 2023Query

ls: cannot access '*.h,v': No such file or directory I am not able to understand what causing this error below is my script #! /bin/bash checkIn() { for file in $(ls *.h) $(ls…
Queries Related to FileIO
0★ 1B 1E Started by gaurav133232July 2023Query

Discuss all your queries related to FileIO here.
kernel compilations issue
0★ 2B 6E Most recent by gaurav133232July 2023Query

zstd : command not found
What are DS and BSS?
0★ 4B 29E Most recent by shivansh9800July 2023Query

It was mentioned in notes that global variables are created in DS and uninitialized global variables in BSS. What do DS and BSS mean here?
Delete Duplicate Elements
0★ 2B 3E Most recent by mohdmohsinkhaneeJune 2023Query

#include#define SIZE 100 int i,n,j,k;int main(){ printf("Enter the size of array:\n"); scanf("%d",&n); int arr[n]; printf("Enter the Array ele…
Arrays - Sorting algorithm
0★ 2B 2E Most recent by usaidsyedmohdJune 2023Query

What's the major advantage of Merge sort over other sorting algorithm?
Error in c++
0★ 2B 3E Most recent by nirmalpg124May 2023Query

I was executing a program given in the notes, this was the error that occured:-Below is the code:-#include using namespace std; class B{ public: virtual void m1() { cout
error in ass37q2
0★ 1B 7E Started by gaurav133232April 2023Query

Iam getting segmenation fault in my code:- Below is the code:- headers.h: #include #include dataStructures.h: typedef struct { 2 int feet; 3 float inches; 4 }Distfeet; 5 typedef struct { 6…
Build error
0★ 3B 3E Most recent by nirmalpg124April 2023Query

I was building my project and these are the errors that occured:- server.c:- #include"../Comman/headers.h" 2 #include"../Comman/dataStruct.h" 3 #include"declerations.h&qu…
initialising char* to an empty string inside zero arg constructor
0★ 1B 4E Started by nirmalpg124April 2023Query

Relevant code: class revsent{ private:char* sent;public: revsent() // zero argument constructor { *sent =" " ; c…
datacompression project
0★ 3B 2E Most recent by ghattepragati7March 2023Query

printf("%s: Begin.\n",___func__); how above line will work?what is ___func___ ?
RCS
0★ 2B 7E Most recent by nirmalpg124January 2023Query

Sir, I wanted to ask whatever keywords we are going to have embedded into the ,v files (comma v files) i.e. RCS workfiles , ( hereby referring to two types of files working file and RCS file) i thi…
Unable to resolve this error
0★ 2B 5E Most recent by nirmalpg124January 2023Query

q4.c:16:1: error: expected ‘,’ or ‘;’ before ‘printf’ 16 | printf("sum of a and c is % d+ %c = %d \n",a,c,Ac); | ^~~~~~ This is the error Iam encountering in my code and this e…
Which keyword can be used for coming out of recursion? And why ?
0★ 1B 16E Started by murshidalam570September 2021Query

Which keyword can be used for coming out of recursion? And why ?
ERROR FACING IN WRTE AND READ TO DEVICE
0★ 1B 26E Started by abhinandan468vMay 2021Query

[ 8760.431168] BUG: unable to handle kernel paging request at ffff8f504a08b100[ 8760.431179] IP: writedev+0xcd/0x1e0 [device][ 8760.431182] PGD 67c3a067 P4D 67c3a067 PUD 0 [ 8760.431190] Oops: 0000 …
What are different mechanismof switching between Kernel mode and user mode ?
0★ 2B 22E Most recent by ritde1April 2021Query

What are different mechanismof switching between Kernel mode and user mode ?
Question About Insertion Sorting
0★ 2B 124E Most recent by spatlouJune 2020Query

Can Someone Give me a Clear Discussion about How 'Insertion Sorting' is Faster Than 'Selection Sorting' ?
20 errors of hello world
0★ 1B 59E Started by guleriavishal34November 2019Query

@page { margin: 2cm } pre.cjk { font-family: "Noto Sans Mono CJK SC", monospace } p { margin-bottom: 0.25cm; line-height: 115% } code.cjk { font-family: "Noto San…
20 error
0★ 1B 53E Started by ashu.kuma1991November 2019Query

@page { margin: 0.79in } p { margin-bottom: 0.1in; line-height: 120% } 1 bug=removed : error: expected ‘;’ before ‘return’ return 0; 2 bug= removed ” missi…
Zombie or Defunct Process
1★ 6B 171E Most recent by urmila.gupta0201October 2019Query

Zombie or Defunct Process ========================== If a child proces tries to teminate,its association with parent remains until the parent terminates normally or calls wait. - The child process…
Summarize Your Day Here
0★ 82B 458E Most recent by manny170593July 2019Query

Hi.
bit manipulation and bit fields , compilation process , basic data types.
0★ 1B 54E Started by akashravindra98June 2019Query

created the custom size bit data types , structures and print its size. discussed the 6 phases of compilation.understanding of interpretation +ve and -ve numbers in system(2's compliment)
Tagline for Emblogic
0★ 1B 54E Started by grishabh355June 2019Query

1-Way better than just engineering2-adding engineering to next built3-exploring new possibilities
Dynamic Array in C++
1★ 1B 42E Started by ashrafumair21June 2019Query

In C++ sessions there was an example in which an array was resized at runtime to hold realtime data of undefined iterations, without creating any new array with bigger size and replacing as done in v…
Getting an issue while installing through yum or dnf
1★ 1B 362E Started by jagdishst1594February 2019Query

Traceback (most recent call last): File "/usr/bin/dnf", line 57, in from dnf.cli import main File "/usr/lib/python3.7/site-packages/dnf/__init__.py", line 30, in import …
Malloc failed
0★ 1B 323E Started by sandeshgupta4uJanuary 2019Query

The following error was encountered :- server: malloc.c:2385: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev…
basic C question
0★ 1B 122E Started by asimaslam990November 2018Query

Please comment on assignment of signed value (e.g -25) into an unsigned variable . What are we assigning to that unsigned variable (2's complement of 25 ) or something else??
How to generate assembly output with your compiler?
0★ 2B 93E Most recent by surajk1164September 2018Query

And run experiments to deduce the name decoration scheme?
Sockets over a network
0★ 2B 89E Most recent by surajk1164August 2018Query

In which directory is struct in_addr present?
How to write a integer value in a file using 'write()' ?
0★ 4B 126E Most recent by surajk1164July 2018Query

please explain.
installation of kernel 4.15.10
0★ 1B 234E Started by rahul.kushwaha2695June 2018Query

I try to install the kernel 4.15.10 version in my system . but when i use the make commands then its show the error . The error are--- [root@localhost linux-stable-4.15.10]# make CHK include/co…
use of pow function
0★ 3B 184E Most recent by atulpant063June 2018Query

#include #include int main() { double a=4,b=2,result; result = pow(b,a); printf("result is %g \n",result); return 0; }
Conditional operator
0★ 2B 133E Most recent by atulpant063June 2018Query

#include #include int main() { int i,n,j; printf("Enter the size of array\n"); scanf ("%d",&j); int a[j]; printf("Enter the elemen…
Compile Linux Kernel with patch
1★ 1B 95E Started by viniboora.viniJune 2018Query

I am trying to build Linux kernel with TBS(Time based scheduling) qdisc patch. . I already know how to build kernel to upgrade to a newer version, But somehow i am missing a few steps to achieve the …
Queue Data Structure
0★ 1B 106E Started by surajk1164May 2018Query

Program for QUEUE Data Structure has been done , below is the program for ***************Prototype**************** int mainmenu(); typedef struct staack { int fp; int rp; int size; i…
c programming
0★ 4B 173E Most recent by atulpant063May 2018Query

Declare an integer variable. Assign a value -5 to check print its positive value. How to print the positive value because after using unsigned int it is not printing the positive value
Query
0★ 1B 104E Started by surajk1164May 2018Query

Is there any command in Linux to recover our deleted files ...??
Query about Function pointers
0★ 1B 60E Started by surajk1164May 2018Query

Can someone tell me how function pointers increases the speed of compilation and execution of our program ?
Interview Questions
0★ 1B 132E Started by bhardwaj_himanshuApril 2018Query

Hello friends there are some interview questions which has been asked during interview you can put your answer over these questions.1.what is difference between function pointer and pointer to functi…
Query
0★ 5B 140E Most recent by surajk1164March 2018Query

Please anyone explain the difference between return(0) and exit (0). Nd also mean of exit (1).
__DEVICE_DRIVERS()
0★ 1B 99E Started by ashrafumair21February 2018Query

What Log does this path have ? /run/log/jounal as in /dev : ll log exits with this lrwxrwxrwx 1 root root 28 Feb 8 19:23 log -> /run/systemd/journal/dev-log = How to open it and …
hw to remove kernel in linux ??
0★ 10B 175E Most recent by ps.hpk001February 2018Query
Carecter Device Driver
0★ 2B 129E Most recent by kartik.guptaFebruary 2018Query

While allocating the size for the quantum of Qset pointer variable, this kind of bug occuring everytime. Please give an explanation for this kind of bugs [38913.266017] BUG: unable to handle kernel…
Queue DS
0★ 1B 100E Started by sajanjha173January 2018Query

Project : Queue DS Autor: Sajan Kumar Jha Description : This project best explains the working of data handling in queue structure.Since we know that queue is a data structure which follows th…
Linux System Administration
0★ 3B 148E Most recent by kartik.guptaJanuary 2018Query

How can we hibernate linux system. what is the command for that??
How IPC is used in the industry .What is it industrial use ?
0★ 1B 81E Started by mohdkokubDecember 2017Query

What is IPC ? How it is used in the industry ?
Is there any logical error if we not initilized the msgctl while using the msgqueue?
0★ 1B 67E Started by sushantpatil3314December 2017Query

msgctl(key_t,command,msgid_ds *buf); This is the snytax. I have not initilized then also the output comes properly for three requesting client. If I increased the client then it will be required to i…
Superuser login issue (ssh) after chsh
0★ 1B 105E Started by bhardwaj.charakDecember 2017Query

I wanted to change my default Fedora bash shell to ssh (as a superuser). So, using chsh command gave the address /bin/ssh. Logout the superuser. But after login as su, I am unable to login and …
105_IPC
0★ 7B 189E Most recent by bhardwaj_himanshuDecember 2017Query

int fd; char sfd; char *ch; ch = (char*)malloc(sizeof(char)*40); if(!ch) { perror("malloc"); exit(EXIT_FAILUR…
DATATYPES
0★ 1B 118E Started by sakshi.mishra2710October 2017Query

Storage class :- In addition to datatypes variable has one or more attribute and that is class.It is of 4 types. Automatic - When a variable declared inside a function block then by default it is as…
DATATYPES
0★ 1B 90E Started by sakshi.mishra2710October 2017Query

Datatypes - It is use to define type of data. A variable can only be used in program if it is not declared with a datatype. Datatypes are helpful in determining how much space will it take in memory.…
Emblogic android application
0★ 2B 93E Most recent by ashrafumair21September 2017Query

How to open documents ?
orphan process
1★ 3B 138E Most recent by saurabh.hmr009September 2017Query

Orphan Process =============== If in a process, the parent process is terminated before the child process, the child process become orphan - It takes the lowest possible process as its parent - And…
System call vs C library
0★ 3B 183E Most recent by saurabh.hmr009September 2017Query

what is difference between system call and c library ?
how i remove return value of scanf at a[0] for this code
0★ 4B 222E Most recent by lkshchoudhary004September 2017Query

#includeint main(){ printf("enter the string\n"); char a[]={scanf("%s",a)}; printf("the string is =%s\n",a); return 0;}
Embedded Lovers : B 97 :Work log /Useful Information only --NO QUERIES PLZ--
0★ 15B 428E Most recent by sankalpnegi2310August 2017Query

Share the work done or any useful info u come across while learning..it may include info/tips/tricks..DO NOT POST QUERIES..For queries use the query forum..
brightness keys not working
0★ 4B 162E Most recent by saurabh.hmr009August 2017Query

I installed fedora 20 on my hp laptop .One problem i face after installation .Brightness keys not working..pls any one knows hw to fix this problem pls help m
can anybody help why the value of a is printed 10 in below code?Thanks!
0★ 6B 483E Most recent by jacobgeorge2101July 2017Query

#include int main() { union var { int a, b; }; union var v; v.a=10; v.b=20; printf("%d\n", v.a); return 0; }…
IPC Thread/mutex semaphore
0★ 6B 205E Most recent by sankalpnegi2310July 2017Query

whenever I run small number of clients let say 100 to 150 kill signal from the server is working fine (here kill signal is send by the server to the client through the pid of the client process(at …
GDB
0★ 3B 107E Most recent by mvr250697July 2017Query

for GDB queries

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