INFINITY on gcc 3.3

[Amit]

Hi,
I am trying to use INFINITY in a c++ code that I have written. I am
using gcc 3.3 on os X 10.3.9
The compiler gives a warning

warning: floating constant exceeds range of "float"

My code uses the following where this error is given:
double c = INFINITY;

I use the following to compile my code:

g++ -c -pg -O -Wno-deprecated -ansi -pedantic -DANSI_HEADERS
-D_G_HAVE_BOOL test.C -I.

How can I resolve this problem? I used this same code in an older
version of gcc(probably 3.1 on RH 9) and it worked fine there..

thanks,
--A.

[Stefan Näwe]

Amit wrote:

Hi,
I am trying to use INFINITY in a c++ code that I have written. I am
using gcc 3.3 on os X 10.3.9
The compiler gives a warning

warning: floating constant exceeds range of "float"

My code uses the following where this error is given:
double c = INFINITY;

I use the following to compile my code:

g++ -c -pg -O -Wno-deprecated -ansi -pedantic -DANSI_HEADERS
-D_G_HAVE_BOOL test.C -I.

How can I resolve this problem? I used this same code in an older
version of gcc(probably 3.1 on RH 9) and it worked fine there..

thanks,
--A.

Where does INFINITY come from and how is it defined ?

You could try this:

<code>

#include <limits>
....
double c = std::numeric_limits<double>::infinity();

</code>

Stefan