Review Request 128295: fix base64 decoding on ARM
Rolf Eike Beer
kde at opensource.sf-tec.de
Mon Jun 27 16:24:40 UTC 2016
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https://git.reviewboard.kde.org/r/128295/
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(Updated June 27, 2016, 6:24 p.m.)
Status
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This change has been marked as submitted.
Review request for KDE Frameworks.
Changes
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Submitted with commit 601fd3a05141c614ae48a3ddac44194d669eaae1 by Rolf Eike Beer to branch master.
Bugs: 364495
http://bugs.kde.org/show_bug.cgi?id=364495
Repository: qca
Description
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This code was broken on ARM and other architectures where "char" is unsigned by default.
First, it breaks with newer compilers with errors like:
.../src/qca_textfilter.cpp:314:2: error: narrowing conversion of '-1' from 'int' to 'char' inside { } [-Wnarrowing]
Second, if the compiler would just allow this conversion then the unsigned char would hold 255, which would not be sign extended when cast to an int later, so all the checks "< 0" will never trigger, and so invalid input characters cannot be detected.
Diffs
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src/qca_textfilter.cpp 9889a24
Diff: https://git.reviewboard.kde.org/r/128295/diff/
Testing
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Builds without error on newer gcc now.
Thanks,
Rolf Eike Beer
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