Hey y'all, as the title says, I'm a wee bit stuck trying to use the math.h library function "pow". Here's my code -

#include <math.h> 
#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[]) {

//OMITTED CODE

size_t i;
double j;
int k;
for(i = argLen - 1, k = 0; k < argLen; i--, k++) {
	j = pow(16, i);
	deciVals[k] = deciVals[k] * j;
}

//OMITTED CODE	

return 0;

}

Despite having math.h included, and using the -lm option for the GCC, I'm still getting this error -

>gcc -lm -o output hexConverter.c
/usr/bin/ld: /tmp/ccghjuxO.o: in function `main':
hexConverter.c:(.text+0x237): undefined reference to `pow'
collect2: error: ld returned 1 exit status

Any help would be appreciated, thanks guys.

Hello! I have a very strange problem.

code:

#include <stdio.h>
#include <math.h>
int main() {
long long a = 1, b = 2;

double ans = pow(1, 2);

printf("%f", ans);
return 0;
}

--------------------------------------

return:

1.000000

============================================

code:

#include <stdio.h>
#include <math.h>
int main() {
long long a = 1, b = 2;

double ans = pow(a, b);

printf("%f", ans);
return 0;
}

--------------------------------------

return:
/usr/bin/ld: CMakeFiles/untitled.dir/main.c.o: in function \main':`

/home/tarminik/CLionProjects/untitled/main.c:7: undefined reference to \pow'`

collect2: error: ld returned 1 exit status