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statistics.c: Fix a potential compiler bug triggered in gcc 3.4.5

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This may look as a simple formatting change and won't make much sense
to the C programmer. It is an actual bug fix in Subsurface for the
target compiler, since it introduces bogus instructions.

The "month" variable ends up being incremented up to 72 for a single
"month++" call (if inside offset brackets).

gcc -v
Configured with: ../gcc-3.4.5-20060117-3/configure --with-gcc --with-gnu-ld
--with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads
--disable-nls --enable-languages=c,c++,f77,ada,objc,java --disable-win32-registry
--disable-shared --enable-sjlj-exceptions --enable-libgcj --disable-java-awt
--without-x --enable-java-gc=boehm --disable-libgcj-debug --enable-interpreter
--enable-hash-synchronization --enable-libstdcxx-debug
Thread model: win32
gcc version 3.4.5 (mingw-vista special r3)

OS: Windows 7 [6.1.7601] - x64

Better explained here:
http://lists.hohndel.org/pipermail/subsurface/2013-February/003967.html

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Lubomir I. Ivanov 2013-02-23 18:33:13 +02:00 • committed by Dirk Hohndel
parent bf5a48a32c
commit dd5e181890
1 changed files with 2 additions and 1 deletions
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statistics.c
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@ -361,7 +361,8 @@ static void update_yearly_stats()
for (j = 0; combined_months < stats_yearly[i].selection_size; ++j) {
combined_months += stats_monthly[month].selection_size;
process_interval_stats(stats_monthly[month++], &year_iter, &month_iter);
process_interval_stats(stats_monthly[month], &year_iter, &month_iter);
month++;
}
}
}