Museum

Home

Lab Overview

Retrotechnology Articles

⇒ Online Manual

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

intro(3)

math(5)

values(5)  —  PUBLIC FILES, TABLES, AND TROFF MACROS

NAME

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(5)

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026