Mercurial > hg > index.cgi
view lwlib/lw_strpool.c @ 504:16bd8effb2f6
Update lwcc driver to actually do something useful sometimes
Make lwcc driver actually find the correct filenames for the preprocessor
and compiler.
Construct the preprocessor argument list correctly instead of assigning all
arguments to argv[0], including the trailing NULL argument.
Instruct lwasm to use the object file format.
Correct state setting for -S and -c options so they stop after the correct
phases of compilation.
author | William Astle <lost@l-w.ca> |
---|---|
date | Thu, 24 Oct 2019 22:41:04 -0600 |
parents | 670ea8f90212 |
children |
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/* lwlib/lw_strpool.c Copyright © 2013 William Astle This file is part of LWTOOLS. LWTOOLS 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, either version 3 of the License, or (at your option) any later version. 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, see <http://www.gnu.org/licenses/>. */ #include <stdlib.h> #include <string.h> #include "lw_alloc.h" #include "lw_string.h" #include "lw_strpool.h" struct lw_strpool *lw_strpool_create(void) { struct lw_strpool *sp; sp = lw_alloc(sizeof(struct lw_strpool)); sp -> nstrs = 0; sp -> strs = NULL; return sp; } extern void lw_strpool_free(struct lw_strpool *sp) { int i; for (i = 0; i < sp -> nstrs; i++) lw_free(sp -> strs[i]); lw_free(sp -> strs); lw_free(sp); } char *lw_strpool_strdup(struct lw_strpool *sp, const char *s) { int i; if (!s) return NULL; /* first do a fast scan for a pointer match */ for (i = 0; i < sp -> nstrs; i++) if (sp -> strs[i] == s) return sp -> strs[i]; /* no match - do a slow scan for a string match */ for (i = 0; i < sp -> nstrs; i++) if (strcmp(sp -> strs[i], s) == 0) return sp -> strs[i]; /* no match - create a new string entry */ sp -> strs = lw_realloc(sp -> strs, sizeof(char *) * (sp -> nstrs + 1)); sp -> strs[sp -> nstrs] = lw_strdup(s); sp -> nstrs++; return sp -> strs[sp -> nstrs - 1]; }