V3 PATCH: #undef some C99 math macros in <cmath>

[Gabriel Dos Reis]

Benjamin Kosnik <bkoz@redhat.com> writes:

| > | > > + #undef isgreater
| > | > > + #undef isgreaterequal
| > | > > + #undef isless
| > | > > + #undef islessequal
| > | > > + #undef islessgreater
| > | > > + #undef isunordered
| > | > 
| > | > in the short term, this is acceptable.
| > | 
| > | This is what you always will have to do.  C99 demands that these are
| > | macros.  You'll replace them with template functions after undefining
| > | the macros.  There is not more correct way.
| 
| Ok. I stand corrected. 
| 
| I didn't mean _USE_GNU, I meant this:
| 
| #define _GNU_SOURCE 1
| 
| this is unconditionally defined in config/os/gnu-linux/bits/os_defines.h

I understand.  But isn't that a linux-centric solution?

-- Gaby