C++ compiler problems with FC2

[Robert L Cochran]

On Mon, 2004-08-30 at 21:17, Ed Hill wrote:
> On Mon, 2004-08-30 at 21:04, Robert L Cochran wrote:
> > > Does this compile for you
> > > 
> > > #include <iostream>
> > > #include <cmath>
> > > 
> > > using namespace std;
> > > 
> > > int main()
> > > {
> > >   cout << "sine 63 = " << sin(63) << endl;
> > >   cout << "log to the base 10 of 54 = " << log10(54) << endl;
> > >   double quick = (sin(53) * sqrt(14.3443) + tanh(22)) / log(61.444);
> > >   cout << "quick = " << quick << endl;
> > > }
> 
> 
> Yes, explicitly converting those constants to doubles is a good idea:
> 
> #include <iostream>
> #include <cmath>
> 
> using namespace std;
> 
> int main()
> {
>   cout << "sine 63 = " << sin(double(63)) << endl;
>   cout << "log to the base 10 of 54 = " << log10(double(54)) << endl;
>   double quick = (sin(double(53)) * sqrt(double(14.3443)) 
>     + tanh(double(22))) / log(double(61.444));
>   cout << "quick = " << quick << endl;
> }
> 
> which then compiles cleanly on my FC2 install (gcc 3.3.3).
> 

[rlc at bobcp4 cpp]$ emacs tsine2.cpp
[rlc at bobcp4 cpp]$ g++ -Wall -pedantic -o tsine tsine2.cpp
[rlc at bobcp4 cpp]$ ls -al
total 24
drwxrwxr-x  2 rlc rlc 4096 Aug 30 21:19 .
drwxrwxr-x  6 rlc rlc 4096 Aug 30 20:58 ..
-rwxrwxr-x  1 rlc rlc 7739 Aug 30 21:19 tsine
-rw-rw-r--  1 rlc rlc  342 Aug 30 21:19 tsine2.cpp
[rlc at bobcp4 cpp]$ ./tsine
sine 63 = 0.167356
log to the base 10 of 54 = 1.73239
quick = 0.606956

:-)