float.h

The float.h include file defines manifest constants that represent implementation-defined properties of floating-point numbers.

Defined Constant	Description
DBL_DIG	The precision in decimal digits for type double.
DBL_EPSILON	The smallest n of type double such that 1.0 + n != 1.0.
DBL_MANT_DIG	The number of mantissa digits, base DBL_RADIX, for type double.
DBL_MAX	The largest finite representable value of type double.
DBL_MAX_10_EXP	The maximum integer n, such that 10ⁿ is a finite representable value of type double.
DBL_MAX_EXP	The maximum integer n, such that DBL_RADIX^n-1 is a finite representable value of type double.
DBL_MIN	The smallest normalized, finite representable value of type double.
DBL_MIN_10_EXP	The minimum integer n such that 10ⁿ is a normalized, finite representable value of type double.
DBL_MIN_EXP	The minimum integer n such that DBL_RADIX^n-1 is a normalized, finite representable value of type double.
DBL_RADIX	The radix of all double types.
DBL_ROUNDS	A value that describes the current rounding mode for double operations. -1 if the mode is indeterminate, 0 if rounding is toward zero (this is the default for the Cx51 Compiler), 1 if rounding is to nearest representable value, 2 if rounding is toward +infinity, 3 if rounding is toward -infinity.
FLT_DIG	The precision in decimal digits for type float.
FLT_EPSILON	The smallest n of type float such that 1.0 + n != 1.0.
FLT_MANT_DIG	The number of mantissa digits, base FLT_RADIX, for type float.
FLT_MAX	The largest finite representable value of type float.
FLT_MAX_10_EXP	The maximum integer n, such that 10ⁿ is a finite representable value of type float.
FLT_MAX_EXP	The maximum integer n, such that FLT_RADIX^n-1 is a finite representable value of type float.
FLT_MIN	The smallest normalized, finite representable value of type float.
FLT_MIN_10_EXP	The minimum integer n, such that 10ⁿ is a normalized, finite representable value of type float.
FLT_MIN_EXP	The minimum integer n, such that FLT_RADIX^n-1 is a normalized, finite representable value of type float.
FLT_RADIX	The radix of all float types.
FLT_ROUNDS	A value that describes the current rounding mode for float operations. -1 if the mode is indeterminate, 0 if rounding is toward zero (this is the default for the Cx51 Compiler), 1 if rounding is to nearest representable value, 2 if rounding is toward +infinity, 3 if rounding is toward -infinity.
LDBL_DIG	The precision in decimal digits for type long double.
LDBL_EPSILON	The smallest n of type long double such that 1.0 + n != 1.0.
LDBL_MANT_DIG	The number of mantissa digits, base LDBL_RADIX, for type long double.
LDBL_MAX	The largest finite representable value of type long double.
LDBL_MAX_10_EXP	The maximum integer n, such that 10ⁿ is a finite representable value of type long double.
LDBL_MAX_EXP	The maximum integer n, such that LDBL_RADIX^n-1 is a finite representable value of type long double.
LDBL_MIN	The smallest normalized, finite representable value of type long double.
LDBL_MIN_10_EXP	The minimum integer n, such that 10ⁿ is a normalized, finite representable value of type long double.
LDBL_MIN_EXP	The minimum integer n, such that LDBL_RADIX^n-1 is a normalized, finite representable value of type long double.
LDBL_RADIX	The radix of all long double types.
LDBL_ROUNDS	A value that describes the current rounding mode for long double operations. -1 if the mode is indeterminate, 0 if rounding is toward zero (this is the default for the Cx51 Compiler), 1 if rounding is to nearest representable value, 2 if rounding is toward +infinity, 3 if rounding is toward -infinity.