1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
| /* rint example */ #include <stdio.h> /* printf */ #include <fenv.h> /* fegetround, FE_* */ #include <math.h> /* rint */ int main () { printf ("rounding using "); switch (fegetround()) { case FE_DOWNWARD: printf ("downward"); break; case FE_TONEAREST: printf ("to-nearest"); break; case FE_TOWARDZERO: printf ("toward-zero"); break; case FE_UPWARD: printf ("upward"); break; default: printf ("unknown"); } printf (" rounding:\n"); printf ( "rint (2.3) = %.1f\n", rint(2.3) ); printf ( "rint (3.8) = %.1f\n", rint(3.8) ); printf ( "rint (-2.3) = %.1f\n", rint(-2.3) ); printf ( "rint (-3.8) = %.1f\n", rint(-3.8) ); return 0; }
|