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annotate lwlib/lw_strbuf.h @ 508:10f62dc61a75

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Fix bad usage of sprintf() Usage of sprintf() to append to a string in the form of sprintf(buf, "%s...", buf...) is undefined, regardless whether it worked on a lot of older systems. It was always a bad idea and it now breaks on current glibc and gcc development environments. The moral: if any of your code uses sprintf() in a way similar to the above, fix it. It may not fail in a benign way.
author William Astle <lost@l-w.ca>
date Sun, 10 May 2020 22:38:24 -0600
parents 670ea8f90212
children
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1 /*
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2 lwlib/lw_strbuf.h
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3
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4 Copyright © 2013 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #ifndef ___lw_strbuf_h_seen___
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23 #define ___lw_strbuf_h_seen___
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25 struct lw_strbuf
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26 {
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27 char *str;
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28 int bl;
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29 int bo;
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30 };
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31
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32 extern struct lw_strbuf *lw_strbuf_new(void);
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33 extern void lw_strbuf_add(struct lw_strbuf *, int);
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34 extern char *lw_strbuf_end(struct lw_strbuf *);
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35
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36 #endif // ___lw_strbuf_h_seen___