source: azure_iot_hub/trunk/musl-1.1.18/src/sched/sched_cpucount.c@ 388

#define _GNU_SOURCE
#include <sched.h>

int __sched_cpucount(size_t size, const cpu_set_t *set)
{
        size_t i, j, cnt=0;
        const unsigned char *p = (const void *)set;
        for (i=0; i<size; i++) for (j=0; j<8; j++)
                if (p[i] & (1<<j)) cnt++;
        return cnt;
}