Float template parameters support in gcc3.2

Float template parameters support in gcc3.2

[Megha Murarka]

Can 'double' parameters in template be used with gcc3.2 ? is there any
option for this support ?

i can compile templates with 'double' parameters in gcc2.96.

thanks in advanc
regards,
Megha

Namespaces and pre-processing directives

[Megha Murarka]

Hi All,

The program given below compiles fine.
but if we use the statement ,
int x = MYSPACE::VALUE +1;
 It gives an error. Why is it so ? (when the #define is present inside the
scope of the namespace ) ????
****************************************************************************
**
namespace MYSPACE{
    #define VALUE 50;
};
int main(){
    int x = VALUE + 1;
    return 1;
}

Regards,
Megha

Re: Namespaces and pre-processing directives

[Matthieu Moy]

"Megha Murarka" <megha@poseidontech.com> writes:

> The program given below compiles fine.
> but if we use the statement ,
> int x = MYSPACE::VALUE +1;
>  It gives an error. Why is it so ? (when the #define is present inside the
> scope of the namespace ) ????

#define  are  managed  by  the  preprocessor,  which  isn't  aware  of
namespaces. 

use const instead :

const int VALUE = 50;

-- 
Matthieu

Re: Namespaces and pre-processing directives

[Andrea 'fwyzard' Bocci]

At 15.49 04/04/2003 +0530, Megha Murarka wrote:
>Hi All,
>
>The program given below compiles fine.
>but if we use the statement ,
>int x = MYSPACE::VALUE +1;
>  It gives an error. Why is it so ? (when the #define is present inside the
>scope of the namespace ) ????
>****************************************************************************
>**
>namespace MYSPACE{
>     #define VALUE 50;
>};
>int main(){
>     int x = VALUE + 1;
>     return 1;
>}
>
>Regards,
>Megha

#define's are handled by the preprocessor, and like macros are unaffected 
by namespaces, classes, etc.
If you try to use them, the compilersees:

>namespace MYSPACE{
>};
>int main(){
>     int x = MYSPACE::50 + 1;
>     return 1;
>}

which has not much sense...

If you need to use namespaces for constants, use enumes instead:

namespace MYSPACE{
     enum {
         VALUE = 50
     };
};
int main(){
     int x = MYSPACE::VALUE + 1;
     return 1;
}

works.

fwyzard