gcc « pthread « C Q&A

1. GCC Atomic Builtins instead of pthread?    stackoverflow.com

I've found following article: Use GCC-provided atomic lock operations to replace pthread_mutex_lock functions It refers to GCC Atomic Builtins. What the article suggest, is to use GCC atomic builtins ...

2. How to use ldconfig to add pthread library    stackoverflow.com

Currently, while compiling a C program which uses pthread library function I have to specify compiler option -lpthread explicitly. Please suggest a way to configure ldconfig so that the pthread library ...

3. Problem while compiling pthreads program    stackoverflow.com

I tried to compile this simple pthreads program with this command

$ gcc -pthread -o pthreads pthreads.c

#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

void *myThread(void *arg);

int main()
{
    pthread_t mythread;
  ...

4. Segfault after launching a new thread    stackoverflow.com

I am writing a stock market system that uses several threads to process the incoming orders. The project was going fine until i added one more thread. When i launch the said ...

5. Return code from pthread_create() is 11    stackoverflow.com

I am trying to run a simple multi threaded programming and i am getting this error from gcc

return code from pthread_create() is 11

6. Weird compile errors (gcc, pthread, math)    cboard.cprogramming.com

#include #include #include #include #define NTHREADS 32 void *Hello(void *threadid){ int i; double result = 0.0; sleep(3); for(i = 0; i < 1000; i++){ double di = (double) i; result += sin(di) * tan(di); } printf("From thread %d:, Hello world!\n", (int) threadid); pthread_exit(NULL); } int main(){ pthread_t threads[NTHREADS]; int rc; int t; for(t = 0; t < ...