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#include <u.h>
#include <libc.h>
#include "libString.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;
}
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