util/strdup.hh
author Manuele Conti <conti.ma@alice.it>
Mon, 30 Jul 2012 22:59:00 +0200
changeset 622 eaa49b276e17
parent 351 e7d236750709
permissions -rwxr-xr-x
Add check bison version in configure.ac file.
To build correctly matiec we need bison greater or equals than 2.4 version.
Now the "configure" script is able to check if system has correctly requirements.
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/*
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 *  matiec - a compiler for the programming languages defined in IEC 61131-3
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 *
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 *  Copyright (C) 2011  Mario de Sousa (msousa@fe.up.pt)
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 *
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 *  This program is free software: you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation, either version 3 of the License, or
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 *  (at your option) any later version.
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 *
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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.  See the
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 *  GNU General Public License for more details.
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 *
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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, see <http://www.gnu.org/licenses/>.
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 *
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 *
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 * This code is made available on the understanding that it will not be
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 * used in safety-critical situations without a full and competent review.
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 */
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/*******************************************/
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/* String Duplication Utility Functions... */
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/*******************************************/
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#ifndef STRDUP__H
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#define STRDUP__H
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#include <stdlib.h>   /* required for malloc() */
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#include <string.h>   /* required for strcat() & strlen() */
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/*
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 * Join two strings together. Allocate space with malloc(3).
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 */
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static char *strdup2(const char *a, const char *b) {
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  char *res = (char *)malloc(strlen(a) + strlen(b) + 1);
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  if (res == NULL) return NULL;
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  return strcat(strcpy(res, a), b);
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}
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/*
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 * Join three strings together. Allocate space with malloc(3).
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 */
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static char *strdup3(const char *a, const char *b, const char *c) {
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  char *res = (char *)malloc(strlen(a) + strlen(b) + strlen(c) + 1);
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  if (res == NULL) return NULL;
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  return strcat(strcat(strcpy(res, a), b), c);
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}
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#endif /* STRDUP__H */