RTTI macro & g++
Author
Hi,
I cant seem to find any macro that is defined if g++ has rtti enabled or not.
According to a document I read somewhere __RTTI should be defined, but that doesnt seem to be the case.
Does anyone know if a macro does get defined, and what it is?
Alternatively a way to create an error at compile-time if rtti is not available?
(turn of rtti via : g++ -fno-rtti)
Thanks.
Do you mean you can't find it defined in a file?
It won't be in a file but it will be as if its defined on the command line.
Try compiling this with the rtti enabled/disabled
Some docs I found said it was only for Tru64 so maybe that's your problem.
[edited by - petewood on March 25, 2004 4:23:24 AM]
It won't be in a file but it will be as if its defined on the command line.
Try compiling this with the rtti enabled/disabled
#include <iostream>int main() {#ifdef __RTTI std::cout << "Rtti enabled\n";#endif#ifndef __RTTI std::cout << "Rtti disabled\n";#endif return 0;}Some docs I found said it was only for Tru64 so maybe that's your problem.
[edited by - petewood on March 25, 2004 4:23:24 AM]
Author
Hi yeah, thanks, I tried that.
Perhaps I have the RTTI switches wrong?
g++ -fno-rtti
and
g++ -frtti
also, if you use the -v option, I assume gcc displays all the #defines? is this correct? because I cant see any difference in the information it displays if rtti is enabled/disabled.
Any ideas?
Perhaps I have the RTTI switches wrong?
g++ -fno-rtti
and
g++ -frtti
also, if you use the -v option, I assume gcc displays all the #defines? is this correct? because I cant see any difference in the information it displays if rtti is enabled/disabled.
quote:
Alternatively a way to create an error at compile-time if rtti is not available?
Any ideas?
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
