-D_BOOL in GCC
 

hey,

im trying to find docs explaining the use of -D_BOOL flag in GCC compiler...

ive downloaded the GCC docs but search for it returns nothing...


none of those flags are in the docs???

any ideas??? thx!

Hi rwm, the -DNAME flags #define the preprocessor symbol NAME, for the files gcc is about to compile. So the given command line #defines the symbols _BOOL, REQUIRE_IOSTREAM and LINUX. What effects they have depends on the code being compiled.

hey thx for the reply Eoin!

that makes a lot more sense now, so its basically a #define statment, so if i just included

#define BOOL

i would be able to omit the -DBOOL flag, similary for the other -D flags?

ta for help!

Exactly, but don't forget the underscore in front of the "BOOL", as that gets included too i.e -D_BOOL is effectively "#define _BOOL"

Mmm, ok I wont forget that!

Just found the -D flag in the GCC docs, well its all cool here!

Thx again!