HUGE_VAL3
Floating-point constants
Part of INFINITY(3).
Usage
#define _ISOC99_SOURCE /* See feature_test_macros(7) */ #include <math.h>
INFINITY
NAN
HUGE_VAL HUGE_VALF HUGE_VALL
Library
Math library (libm)
Overview
The macro INFINITY expands to a float constant representing positive infinity.
The macro NAN expands to a float constant representing a quiet NaN (when supported). A quiet NaN is a NaN ("not-a-number") that does not raise exceptions when it is used in arithmetic. The opposite is a signaling NaN. See IEC 60559:1989.
The macros HUGE_VAL, HUGE_VALF, HUGE_VALL expand to constants of types double, float, and long double, respectively, that represent a large positive value, possibly positive infinity.
Releases
12 releases since Debian 3.1 (Sarge); the text changed 11 times.