Chetan Jhurani <[email protected]> writes:

Info about long long:

Visual Studio 2005 supports long long (sizeof = 8) even when compiling in 32 bit mode, so I assume all later ones do.

Trilinos 11.0+ uses long long for 64-bit indices. I have tested it with two compilers (2005/2012) and I'm guessing others have used other versions.

We use 'long long' or '__int64', but I don't have any data about whether the '__int64' option is still needed. It sounds like maybe not. Trilinos is C++ where as PETSc needs only a C compiler, and what is "portable enough" for them does not necessarily carry over.

About stdint.h:

I see that it is there with Visual Studio 2012 on my machine, but not with 2005. Below is more info on stdint and MS VS. I never had a need to use it so can't say more than this.

http://stackoverflow.com/questions/126279/c99-stdint-h-header-and-ms-visual-...

Yeah, we've had this discussion before.