delta/libgit2.git/src/integer.h, branch ethomson/libssh2_not_libssh

consistent header guards

2018-02-01T23:56:33+00:00

use consistent names for the #include / #define header guard pattern.

mac: on 32 bit, use `__builtin_umull_overflow`

2017-01-23T22:29:58+00:00

Fix MAX 32 bit build problem described in libgit2/libgit2#2917

2015-02-20T17:59:43+00:00

integer overflow: use compiler intrinsics if supported

2015-02-13T14:28:09+00:00

gcc and clang support __builtin_add_overflow, use it whenever
possible, falling back to our naive routines.

Make our overflow check look more like gcc/clang's

2015-02-13T14:27:33+00:00

Make our overflow checking look more like gcc and clang's, so that
we can substitute it out with the compiler instrinsics on platforms
that support it.  This means dropping the ability to pass `NULL` as
an out parameter.

As a result, the macros also get updated to reflect this as well.

Introduce git__add_sizet_overflow and friends

2015-02-13T03:54:47+00:00

Add some helper functions to check for overflow in a type-specific
manner.