![Questions Tagged [C]](https://docuprint.cloud68.co/uploads/questions-tagged-c_1200.jpg)
C is a general-purpose programming language used for system programming (OS and embedded), libraries, games and cross-platform. This tag should be used with general questions concerning the C language, as defined in the ISO 9899 standard (the latest version, 9899:2018, unless otherwise specified — also tag version-specific requests with c89, c99, c11, etc). C is distinct from C++ and it should not be combined with the C++ tag absent a rational reason.
381,080
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What are the differences between sem and pthread_cond in C
Hello I start with pthread_cond and semaphore in C and I see semaphore have this services:
int sem_init(sem_t *sem, int shared, int valini);
int sem_destroy(sem_t *sem);
int sem_wait(sem_t *sem);
int ...
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Is there any Equivalent to this c code in assembly language x86
Is there any Equivalent to this C Code in the Assembly language x86?
Probably, Yes but I don't know.
Here's the C Code
#define lol 0x00004000
#define something 0x00000100
void main(void)
{
...
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17
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Suppressing "variable set but not used" warnings in the disabled case of a debug printf macro
There are a ton of questions about suppressing "variable set but not used" warnings, but I haven't found one that addresses my very specific problem, which is a debugging macro defined as ...
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Linked List nodes disappear while adding (nodes showing garbage values)
I need to read a set of data from a text file and add them as nodes to a linked list. The linked list needs to be an ordered list according to studentID present in the data.
I did the following code. ...
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How to code function if nothing, or wrong input is entered to ask aqain for input + what is wrong. It is possible everything split in functions?
#include <stdlib.h>
#include <stdio.h>
char
input(char emailInput[100])
{
printf("Enter email:"); // if nothing or wrong email is input repeat//
gets(...
1
vote
1
answer
39
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Recursive function for converting lower case to upper case
I've been tasked to write a recursive function in C that changes a string of any chars to all caps (without using toupper() or any other function for that matter).
This is the previous code and ...
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1
answer
28
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When to use calloc or malloc in C [duplicate]
What's better/more efficient - calloc or malloc?
I want to initialise structs, that refer to other instances of the same struct also
VARIANT 1
person *new_person() {
struct _person *person = ...
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3
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using C copy a 1D char array into 2D char array
I am trying to copy a 1D array of Strings into a 2D array of strings in C.
I was able to achieve this with integer
enter image description here
//Here is what I tried for integers.
int main()
...
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20
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What will be the output of a fork() in a for loop
int main()
{
pid_t pid;
int i;
printf("START\n");
for (i=0; i<6; i++){
if ((pid = fork()) <0){fprintf(stderr, "Fork failed\n"); return 1;}
printf("A\n");
...
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NOOB Q - # include <stdio.h) in VScode [duplicate]
Recently started learning to code and for my very first program in C I am
Getting this error and don't know how to fix it:
cannot open source file "stdio.h"
code :
#include <stdio.h>
...
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4
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Why are asterisks needed for array variable?
Looking at the code segment down below, array in C language is already a pointer saving the address of the first element of the array, so why the asterisk is needed for argv variable?
char *argv[3];
...
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Calling C function from Kotlin using JNI
I have created two C functions with the following declarations:
/* Function Declarations */
extern void compute_feature_set(double input[1102], double F_data[],
int ...
1
vote
1
answer
60
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C memory leak, where there is no memory leak? (valgrind)
valgrind is telling me that a specific line in my code creates a memory leak, but when looking at that line, it does not seem to even be able to create one.
I am working with this pretty simple Linked ...
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0
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why the return has no output of counting function in C? [closed]
I need to create a function that return the number of characters given .
but there is no output. (ps: i cant use printf for study issues)
#include <stdio.h>
int ft_strlen(char *str) {
int i =...
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2
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function that returns a version of the given arrays where each zero value in the array is replaced by the smallest odd value to the right of 0. In C
I'm having a bit of trouble with this problem. The full text of the problem is as follows : "Write a function that returns a version of the given array of non-negative integers where each zero ...
