raze/polymer/eduke32/build
helixhorned 3e4357c6a4 Integer Overflow Offensive continued: first round of -ftrapv - cleanness.
That is, "clang -ftrapv" builds don't abort almost immediately after entering
a level.

There are various classes of overflow bugs, needing different handling:
 - Some texture mapping code was written with signed integer wrapping semantics
   in mind.  In some places, we're able to get away with unsigned casts.
 - sometimes, we really need a wider range, like when calculating distances or
   dot products
 - negating INT_MIN.  Here, we cast to int64_t temporarily.  Note that if the
   result is 32-bit wide, no 64-bit code may actually need to be generated.
 - shifting into a signed integer's sign bit.  We cast to uint32 here.
 - in hitscan(), at the "abyss crash prevention code" comment, it's clearly
   the other code that is better...

This is not merely done for pedantry, but rather makes it easier to track down
overflow bugs having a real impact on the game.

git-svn-id: https://svn.eduke32.com/eduke32@2784 1a8010ca-5511-0410-912e-c29ae57300e0
2012-06-26 19:49:53 +00:00
..
doc Set union ['] and difference [;] for sector selection in Mapster32; probably fix for crash on clipshape-init; replace tabs in doc/build*.txt with three spaces. 2010-11-20 16:47:18 +00:00
include Relative-aligned non-flipped ceiling/floor texture alignment ([;]+[ENTER]) 2012-06-20 20:55:03 +00:00
obj.gnu Moved build to a subdir underneath the eduke32 dir to avoid people trying to compile from the build src dir by mistake 2008-10-20 03:09:19 +00:00
obj.msc Moved build to a subdir underneath the eduke32 dir to avoid people trying to compile from the build src dir by mistake 2008-10-20 03:09:19 +00:00
rsrc Moved build to a subdir underneath the eduke32 dir to avoid people trying to compile from the build src dir by mistake 2008-10-20 03:09:19 +00:00
src Integer Overflow Offensive continued: first round of -ftrapv - cleanness. 2012-06-26 19:49:53 +00:00
buildlic.txt Moved build to a subdir underneath the eduke32 dir to avoid people trying to compile from the build src dir by mistake 2008-10-20 03:09:19 +00:00
MakeDistributions Moved build to a subdir underneath the eduke32 dir to avoid people trying to compile from the build src dir by mistake 2008-10-20 03:09:19 +00:00
Makefile Fix a thinko in a comment (about commenting) in build/Makefile. 2012-06-26 19:49:50 +00:00
Makefile.deps Build tools: 2012-03-23 20:23:46 +00:00
Makefile.msvc Build tools: 2012-03-23 20:23:46 +00:00
Makefile.shared Add prototypical SDL 2.X support. 2012-06-22 21:39:53 +00:00