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C.3 The Header File cfloat

This header file supplies named constants that define the characteristics of floating-point numbers on your particular machine. Among these constants are the following:

FLT_DIG

Approximate number of significant digits in a float value on your machine

FLT_MAX

Maximum positive float value on your machine

FLT_MIN

Minimum positive float value on your machine

DBL_DIG

Approximate number of significant digits in a double value on your machine

DBL_MAX

Maximum positive double value on your machine

DBL_MIN

Minimum positive double value on your machine

LDBL_DIG

Approximate number of significant digits in a long double value on your machine

LDBL_MAX

Maximum positive long double value on your machine

LDBL_MIN

Minimum positive long double value on your machine



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