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author | Federico Mena Quintero | 2013-06-28 20:02:20 -0500 |
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committer | Federico Mena Quintero | 2013-07-02 20:31:44 -0500 |
commit | 42892465d4522cf19283b8a06bf48104bb387430 (patch) | |
tree | cdb38bd51c5bdc3ab65541071b70b566be3a11d5 /common/utils.h | |
parent | ef73e32751e86eca9ae34160708233da401a3297 (diff) | |
download | libimobiledevice-42892465d4522cf19283b8a06bf48104bb387430.tar.gz libimobiledevice-42892465d4522cf19283b8a06bf48104bb387430.tar.bz2 |
common: Add utils.[ch] with a string_concat() function
Instead of doing malloc() and repeated strcat(), which is an O(n^2) way to concatenate multiple strings,
we define a single O(total_len) function that uses stpcpy(). This will also make the rest of the code
more legible and safer.
Diffstat (limited to 'common/utils.h')
-rw-r--r-- | common/utils.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/common/utils.h b/common/utils.h new file mode 100644 index 0000000..129f974 --- /dev/null +++ b/common/utils.h @@ -0,0 +1,27 @@ +/* + * utils.h + * Miscellaneous utilities for string manipulation + * + * Copyright (c) 2013 Federico Mena Quintero + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __UTILS_H +#define __UTILS_H + +char *string_concat(const char *str, ...); + +#endif |