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wrapper: use a loop instead of repetitive statements 

A check into the history of this code revealed no particular reason for
the code to be written in this way. All popular compilers are capable of
unrolling loops if it benefits performance, and once this code is
replaced with a loop, the magic number 6 used in multiple places in this
function can be replaced with a named constant.

Reviewed-by: Derrick Stolee <stolee@gmail.com>
Reviewed-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Alex Henrie 2019-09-30 20:29:36 -06:00 committed by Junio C Hamano
parent baed6bbb5b
commit 54a80a9ad8
1 changed files with 5 additions and 6 deletions
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11
wrapper.c
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@ -506,13 +506,12 @@ int git_mkstemps_mode(char *pattern, int suffix_len, int mode)
filename_template = &pattern[len - 6 - suffix_len];
for (count = 0; count < TMP_MAX; ++count) {
uint64_t v = value;
int i;
/* Fill in the random bits. */
filename_template[0] = letters[v % num_letters]; v /= num_letters;
filename_template[1] = letters[v % num_letters]; v /= num_letters;
filename_template[2] = letters[v % num_letters]; v /= num_letters;
filename_template[3] = letters[v % num_letters]; v /= num_letters;
filename_template[4] = letters[v % num_letters]; v /= num_letters;
filename_template[5] = letters[v % num_letters]; v /= num_letters;
for (i = 0; i < 6; i++) {
filename_template[i] = letters[v % num_letters];
v /= num_letters;
}
fd = open(pattern, O_CREAT | O_EXCL | O_RDWR, mode);
if (fd >= 0)