mirror of
https://git.code.sf.net/p/quake/quakeforge
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0cbe438ac1
va now cycles through a set of four dstrings rather than using just the one. This allows for some simple chaining of va usage.
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
/*
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va.c
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varargs printf function
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdarg.h>
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#include "QF/dstring.h"
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#include "QF/va.h"
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/*
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va
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does a varargs printf into a temp buffer, so I don't need to have
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varargs versions of all text functions.
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*/
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VISIBLE char *
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va (const char *fmt, ...)
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{
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va_list args;
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static dstring_t *string[4];
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#define NUM_STRINGS (sizeof (string) / sizeof (string[0]))
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static int str_index;
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dstring_t *dstr;
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if (!string[0]) {
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for (size_t i = 0; i < NUM_STRINGS; i++) {
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string[i] = dstring_new ();
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}
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}
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dstr = string[str_index++ % NUM_STRINGS];
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va_start (args, fmt);
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dvsprintf (dstr, fmt, args);
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va_end (args);
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return dstr->str;
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}
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VISIBLE char *
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nva (const char *fmt, ...)
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{
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va_list args;
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dstring_t *string;
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string = dstring_new ();
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va_start (args, fmt);
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dvsprintf (string, fmt, args);
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va_end (args);
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return dstring_freeze (string);
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}
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