#include <stdio.h>
#include <math.h>
int main(void){
int i=1;
printf("before for %d\n", pow(4, i));//Error Here
return 0;
}
#include <stdio.h>
#include <math.h>
int main(void){
int i=1;
printf("before for %d\n", pow(4, 2));//Error Here
return 0;
}
Quote:Original post by DevFredQuote:Original post by Gage64
Use %lf instead.
%lf is for long double, %f is for double.
Quote:Original post by Kambiz
If you are using gcc you need to link to libm.so or libm.a:
gcc -lm -o test test.c
Since pow(4, 2) is a compile time constant, the compiler might replace it with 16.0 eliminating the pow and the need of linking to the math library.
When your project is GNU Autotools (Autoconf/Automake) based then you are most probably using the KDevelop Automake manager (see FAQ#Where is the Automake manager in KDevelop?).
To link your program against a library, or to add a library do :
Do not forget to add the the location of the library's .h files to the include path of your executable like it's explained in FAQ#How to add an external include path to a project?
