git: 9front

ref: 11b5c4b8bf0a15777e9a7f2292f6c80f5a7b4a2d
dir: /sys/src/libString/s_putc.c/

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#include <u.h>
#include <libc.h>
#include "String.h"

void
s_putc(String *s, int c)
{
	if(s->ref > 1)
		sysfatal("can't s_putc a shared string");
	if (s->ptr >= s->end)
		s_grow(s, 2);
	*(s->ptr)++ = c;
}