shithub: p9-stm32-example-bare

ref: 385ecf9c11ba7114801e877090951e1785698051
dir: /libkern/memccpy.c/

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#include	<u.h>
#include	"kern.h"

void*
memccpy(void *a1, void *a2, int c, ulong n)
{
	uchar *s1, *s2;

	s1 = a1;
	s2 = a2;
	c &= 0xFF;
	while(n > 0) {
		if((*s1++ = *s2++) == c)
			return s1;
		n--;
	}
	return 0;
}