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main: improve handling of setlocale(3) return value

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There's no need to call setlocale() twice, since the first call
returns the same value as the second.

We also handle a NULL return value explicitly and show a distinct
error message for that case, since it typically indicates a
misconfigured locale and not just a non-UTF8 locale.
This commit is contained in:
Craig Barnes 2021-11-10 17:29:57 +00:00
parent 3e04c4e4f4
commit 0e5e68d82e
1 changed files with 6 additions and 2 deletions
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8
main.c
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@ -417,8 +417,12 @@ main(int argc, char *const *argv)
srand(time(NULL)); srand(time(NULL));
setlocale(LC_CTYPE, ""); const char *locale = setlocale(LC_CTYPE, "");
LOG_INFO("locale: %s", setlocale(LC_CTYPE, NULL)); if (locale == NULL) {
LOG_ERR("setlocale() failed");
return ret;
}
LOG_INFO("locale: %s", locale);
if (!locale_is_utf8()) { if (!locale_is_utf8()) {
LOG_ERR("locale is not UTF-8"); LOG_ERR("locale is not UTF-8");
return ret; return ret;