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Will
28 lines
536 B
C
28 lines
536 B
C
// Copyright (C) 2012 - Will Glozer. All rights reserved.
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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char *aprintf(char **s, const char *fmt, ...) {
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char *c = NULL;
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int n, len;
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va_list ap;
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va_start(ap, fmt);
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n = vsnprintf(NULL, 0, fmt, ap) + 1;
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va_end(ap);
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len = *s ? strlen(*s) : 0;
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if ((*s = realloc(*s, (len + n) * sizeof(char)))) {
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c = *s + len;
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va_start(ap, fmt);
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vsnprintf(c, n, fmt, ap);
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va_end(ap);
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}
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return c;
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}
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