HP Integrity NonStop H-Series - Manual (Page 243)

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©Copyright 1996 Rogue Wave Software
Numeric Limit Members
Since a number of the fields in the numeric_limits structure are meaningful only for floating
point values, it is useful to separate the description of the members into common fields and
floating-point specific fields.
Members Common to All Types
The following table summarizes the information available through the numeric_limits static
member data fields and functions.
Type Name Meaning
bool is_specialized true if a specialization exists, false otherwise
T min() smallest finite value
T max() largest finite value
int radix the base of the representation
int digits number of radix digits that can be represented without change
int digits10 number of base-10 digits that can be represented without change
bool is_signed true if the type is signed
bool is_integer true if the type is integer
bool is_exact true if the representation is exact
bool is_bounded true if representation is finite
bool is_modulo true if type is modulo
bool traps true if trapping is implemented for the type
Radix represents the internal base for the representation. For example, most machines use a
base 2 radix for integer data values, however some may also support a representation, such as
BCD, that uses a different base. The digits field then represents the number of such radix values
that can be held in a value. For an integer type, this would be the number of non-sign bits in the