github.com/afumu/libc@v0.0.6/musl/src/sched/sched_cpucount.c (about)

     1  #define _GNU_SOURCE
     2  #include <sched.h>
     3  
     4  int __sched_cpucount(size_t size, const cpu_set_t *set)
     5  {
     6  	size_t i, j, cnt=0;
     7  	const unsigned char *p = (const void *)set;
     8  	for (i=0; i<size; i++) for (j=0; j<8; j++)
     9  		if (p[i] & (1<<j)) cnt++;
    10  	return cnt;
    11  }