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Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
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libc/testlib/formatint.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/fmt/fmt.h"
#include "libc/macros.h"
#include "libc/mem/mem.h"
#include "libc/testlib/testlib.h"
static size_t sbufi_;
static char sbufs_[2][256];
nodiscard testonly char *testlib_formatint(intmax_t x) {
char *str = sbufi_ < ARRAYLEN(sbufs_) ? sbufs_[sbufi_++] : malloc(256);
char *p = str;
p += sprintf(p, "%jd\t(or %#jx", x, x);
if (0 <= x && x < 256) {
p += sprintf(p, " or %#`c", (unsigned char)x);
}
*p++ = ')';
*p++ = '\0';
return str;
}