Kyle Altendorf added the comment:
A little macro funny business gets a function the ability to know if the type
passed to its wrapping macro is signed or not.
http://ideone.com/NZYs7u
// http://stackoverflow.com/questions/7469915
#define IS_UNSIGNED(v) (v >= 0 && ~v >= 0)
#define F(v) f
Kyle Altendorf added the comment:
I do not seem to be getting a compiler warning.
arm-fsl-linux-gnueabi-gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv
-O3 -Wall -Wstrict-prototypes-Werror=declaration-after-statement -I.
-IInclude -I./Include
-I"/epc/t/262/misc-build-arm-fsl-l
