Add checks to avoid finding empty substring / zero character

... which changed in commit 281989007fd7dea997ed9a65f513f80b1aff67dd

Author Noel Grandin <noel@peralex.com>
Date   Tue Jul 01 13:17:01 2014 +0200

Use standard library optimised routines for OUString/OString

for optimized cases: strchr/wcschr/strrchr/wcsrchr find trailing zero
character, and strstr/wcsstr find empty string; previous/unoptimized
code does not find these. This introduced inconsistency between char
and sal_Unicode functions on non-Windows, and for sal_Unicode between
Windows and non-Windows (because on Windows, optimized code is used
for sal_Unicode, while on other platforms, unoptimized code is used).

Change-Id: I68529c91b26f4113d9bd7777fc5ac4809349864b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/131064
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

0 files changed, 0 insertions, 0 deletions