mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-23 22:02:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Initial import

Browse source
This commit is contained in:
Justine Tunney 2020-06-15 07:18:57 -07:00
commit c91b3c5006
14915 changed files with 590219 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

56
tool/viz/lib/stringbuilder.c Normal file
View file

@ -0,0 +1,56 @@
/*-*- 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/log/check.h"
#include "libc/macros.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
#include "libc/x/x.h"
#include "tool/viz/lib/stringbuilder.h"
static noinline void StringBuilderGrow(size_t need, struct StringBuilder *sb) {
size_t n2;
n2 = MAX(16, sb->n);
while (sb->i + need > n2) n2 += n2 >> 1;
sb->p = xrealloc(sb->p, n2);
sb->n = n2;
}
struct StringBuilder *NewStringBuilder(void) {
return xcalloc(1, sizeof(struct StringBuilder));
}
int StringBuilderAppend(const char *s, struct StringBuilder *sb) {
size_t size;
CHECK_LE(sb->i, sb->n);
size = strlen(s);
if (sb->i + size + 1 > sb->n) StringBuilderGrow(size + 1, sb);
memcpy(sb->p + sb->i, s, size + 1);
sb->i += size;
return 0;
}
char *FreeStringBuilder(struct StringBuilder *sb) {
char *res;
CHECK_LE(sb->i, sb->n);
CHECK_EQ('\0', sb->p[sb->i]);
res = xrealloc(sb->p, sb->i + 1);
free(sb);
return res;
}