values(5)

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.
MAXLONGDOUBLE, LN_MAXLONGDOUBLE: The maximum value of a quad-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.
MINLONGDOUBLE, LN_MINLONGDOUBLE: The minimum value of a quad-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.
LDSIGNIF: The number of significant bits in the mantissa of a quad-precision floating-point number.

References

intro(3), math(5)