> Read /usr/include/bits/mathcalls.h.
Have you compiled a sample code with log2l() and <math.h>
and checked whether a warning was displayed? I doubt it.
Could you compile the following code with "gcc -Wall"?
#include <math.h>
int main(void)
{
long double a=0.1;
return (int) log2l(a);
}
I got the following warning, which should not happen according
to the manual page.
sh-2.05b$ gcc -Wall log2l.c -lm
log2l.c: In function `main':
log2l.c:6: warning: implicit declaration of function `log2l'
Ryutaroh
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