pthread_attr_init.c\thread\src - musl - musl - an implementation of the standard library for Linux-based systems

#include "pthread_impl.h"
int pthread_attr_init(pthread_attr_t *a)
{
	*a = (pthread_attr_t){0};
	__acquire_ptc();
	a->_a_stacksize = __default_stacksize;
	a->_a_guardsize = __default_guardsize;
	__release_ptc();
	return 0;
}