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#include "sam.h"
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void
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cvttorunes(char *p, int n, Rune *r, int *nb, int *nr, int *nulls)
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{
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	uchar *q;
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	Rune *s;
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	int j, w;
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	/*
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	 * Always guaranteed that n bytes may be interpreted
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	 * without worrying about partial runes.  This may mean
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	 * reading up to UTFmax-1 more bytes than n; the caller
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	 * knows this.  If n is a firm limit, the caller should
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	 * set p[n] = 0.
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	 */
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	q = (uchar*)p;
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	s = r;
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	for(j=0; j<n; j+=w){
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		if(*q < Runeself){
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			w = 1;
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			*s = *q++;
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		}else{
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			w = chartorune(s, (char*)q);
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			q += w;
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		}
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		if(*s)
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			s++;
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		else if(nulls)
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			*nulls = TRUE;
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	}
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	*nb = (char*)q-p;
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	*nr = s-r;
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}
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void*
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fbufalloc(void)
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{
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	return emalloc(BUFSIZE);
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}
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void
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fbuffree(void *f)
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{
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	free(f);
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}
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uint
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min(uint a, uint b)
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{
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	if(a < b)
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		return a;
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	return b;
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}