I tried:
using namespace std;
before everything and it still failed to find isnan.
wes
On 5/22/05, Brian Budge <brian.budge@xxxxxxxxx> wrote:
> You need to be using the namespace std.
>
> On 5/21/05, Wesley Smith <wesley.hoke@xxxxxxxxx> wrote:
> > Hi,
> >
> > I'm trying to compile a test program to see about the isnan function
> > on my system (apple darwin w/ gcc version 3.3 20030304 (Apple
> > Computer, Inc. build 1671). Here's the code:
> >
> > #include <cmath>
> > int main()
> > {
> > float x=sqrt(-1);
> > return isnan(x);
> > }
> >
> > Here's the output:
> >
> > gcc -o main main.cpp
> > main.cpp: In function `int main()':
> > main.cpp:5: error: `isnan' undeclared (first use this function)
> > main.cpp:5: error: (Each undeclared identifier is reported only once for each
> > function it appears in.)
> >
> > This is baffling since cmath is included and it redifines the macros
> > which it includes from math.h. I completely stumped here and would
> > appreciate any help.
> >
> > thanks,
> > wes
> >
>
