VALUES.H(3HEAD) Headers VALUES.H(3HEAD)

NAME

values.h, values - machine-dependent values

SYNOPSIS

#include <values.h>

DESCRIPTION

This file contains a set of manifest constants, conditionally defined
for particular processor architectures.


The model assumed for integers is binary representation (one's or
two's complement), where the sign is represented by the value of the
high-order bit.

BITS(type)
The number of bits in a specified type
(for example, int).


HIBITS
The value of a short integer with only the
high-order bit set.


HIBITL
The value of a long integer with only the
high-order bit set.


HIBITI
The value of a regular integer with only
the high-order bit set.


MAXSHORT
The maximum value of a signed short
integer.


MAXLONG
The maximum value of a signed long
integer.


MAXINT
The maximum value of a signed regular
integer.


MAXFLOAT, LN_MAXFLOAT
The maximum value of a single-precision
floating-point number, and its natural
logarithm.


MAXDOUBLE, LN_MAXDOUBLE
The maximum value of a double-precision
floating-point number, and its natural
logarithm.


MINFLOAT, LN_MINFLOAT
The minimum positive value of a single-
precision floating-point number, and its
natural logarithm.


MINDOUBLE, LN_MINDOUBLE
The minimum positive value of a double-
precision floating-point number, and its
natural logarithm.


FSIGNIF
The number of significant bits in the
mantissa of a single-precision floating-
point number.


DSIGNIF
The number of significant bits in the
mantissa of a double-precision floating-
point number.

SEE ALSO

Intro(3) math.h(3HEAD)

March 2, 1993 VALUES.H(3HEAD)