This is the mail archive of the
cygwin@sourceware.cygnus.com
mailing list for the Cygwin project.
Re: cygwin and pow()
- To: gnu-win32 at cygnus dot com (GNU-Win32), "Axel Riese" <Axel dot Riese at risc dot uni-linz dot ac dot at>
- Subject: Re: cygwin and pow()
- From: "Sune Falck" <mb38421 at bamse dot swip dot net>
- Date: Tue, 7 Apr 1998 20:44:41 +0200
- Reply-to: Sune dot Fack at swipnet dot se
On 31 Mar 98 at 8:55, Axel Riese wrote:
> Dear all !
>
> Could someone please help me with the following problem. I want to
> compute 0.5 ^ 0.75, which should give something close to 0.5946...
>
You must include math.h to get the prototype for the
pow function. If you dont include math.h the compiler
believes that the function returns an int that then
gets converted to a double with dubious value.
#include <stdlib.h>
#include <math.h>
int main(int argc, char **argv)
{
double result;
result = pow (0.5, 0.75);
printf ("The result is %f\n", result);
return EXIT_SUCCESS;
}
C:\users\default>gcc -o pow.exe pow.c
C:\users\default>pow
The result is 0.594604
Sune Falck
>
--
Sune Falck <Sune.Falck@swipnet.se>
Stavshaellsvaegen 5, S-146 54 Tullinge, Sweden
-
For help on using this list (especially unsubscribing), send a message to
"gnu-win32-request@cygnus.com" with one line of text: "help".