values.h(7) — AIX PS/2 1.2.1



VALUES.H(7,F)               AIX Technical Reference               VALUES.H(7,F)



-------------------------------------------------------------------------------
values.h



PURPOSE

Defines machine-dependent values.

SYNOPSIS

#include <values.h>

DESCRIPTION

This header file contains a set of manifest constants that are conditionally
defined for particular processor architectures.  The model for integers is
assumed to be a ones- or twos-complement binary representation, in which the
sign is represented by the value of the high-order bit.

BITS(type)    The number of bits in the specified data type

HIBITS        A short integer with only the high-order bit set (0x8000)

HIBITL        A long integer with only the high-order bit set (0x80000000)

HIBITI        A regular integer with only the high-order bit set (the same as
              HIBITL)

MAXSHORT      The maximum value of a signed short integer (0x7FFF == 32767)

MAXLONG       The maximum value of a signed long integer (0x7FFFFFFF ==
              2147483647)

MAXINT        The maximum value of a signed regular integer (the same as
              MAXLONG)

MAXFLOAT      The maximum value of a single-precision floating-point number

MAXDOUBLE     The maximum value of a double-precision floating-point number

LN_MAXDOUBLE  The natural logarithm of MAXDOUBLE

MINFLOAT      The minimum positive value of a single-precision floating-point
              number

MINDOUBLE     The minimum positive value of a double-precision floating-point
              number

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




Processed November 7, 1990       VALUES.H(7,F)                                1



VALUES.H(7,F)               AIX Technical Reference               VALUES.H(7,F)



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

FMAXEXP       The maximum exponent of a single-precision floating-point number

DMAXEXP       The maximum exponent of a double-precision floating-point number

FMINEXP       The minimum exponent of a single-precision floating-point number

DMINEXP       The minimum exponent of a double-precision floating-point number

FMAXPOWTWO    The largest power of two that can be exactly represented as a
              single-precision floating-point number

DMAXPOWTWO    The largest power of two that can be exactly represented as a
              double-precision floating-point number.

FILE

/usr/include/values.h

RELATED INFORMATION

In this book:  "math.h" and "types.h."































Processed November 7, 1990       VALUES.H(7,F)                                2

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