RAD Studio |  |

_logb, _logbl

Header File

float.h

Category

Math Routines

Prototype

double _logb(double d);

long double _logbl(long double ld);

Description

Extracts the exponential value of a double-precision floating-point argument. If the argument is denormalized, it is treated as if it were normalized.

_logbl is the long double version; it takes a long double argument and returns a long double result.

Return Value

Returns the unbiased exponent of the value passed in.

Portability

| POSIX | Win32 | ANSI C | ANSI C++
_logb |  | + |  |
_logbl |  | + |  |

Copyright(C) 2009 Embarcadero Technologies, Inc. All Rights Reserved.
What do you think about this topic? Send feedback!