Why does the following:
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
int main()
{
long int a;
a = lrint(2.1314);
printf("a = %li\n", a);
exit(0);
}
when compiled with:
gcc -Wall -lm -o lrint lrint.c
always complain:
lrint.c: In function `main':
lrint.c:9: warning: implicit declaration of function `lrint'
?
Works fine though.
Also, what's the difference between lrint() and (long)rint()? I mean,
why even have lrint? Faster because it's integer only?
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