Build-in sqrt()?


hello everyone,

why this c code can be compiled and linked without -lm?

#include<math.h>
#include<stdio.h>
int main()
{
printf("%f\n",sqrt(2.0));
return 0;
}

even NO sqrt symbol when i use nm to list symbols from the object file

someone can give me a hint? i'm using a gcc-4.1.2 with glibc2.4.1 under
linux

best regards

.

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