Standard C++ Library Reference ISO/IEC (VERSION3)

FLT_MANT_DIG
#define FLT_MANT_DIG <integer rvalue>
The macro yields the number of mantissa digits, base FLT_RADIX, for type float.
FLT_MAX
#define FLT_MAX <float rvalue >= 10^37>
The macro yields the largest finite representable value of type float.
FLT_MAX_10_EXP
#define FLT_MAX_10_EXP <integer rvalue >= 37>
The macro yields the maximum integer X, such that 10^X is a finite representable value of type
float.
FLT_MAX_EXP
#define FLT_MAX_EXP <integer rvalue>
The macro yields the maximum integer X, such that FLT_RADIX^(X - 1) is a finite
representable value of type float.
FLT_MIN
#define FLT_MIN <float rvalue <= 10^(-37)>
The macro yields the smallest normalized, finite representable value of type float.
FLT_MIN_10_EXP
#define FLT_MIN_10_EXP <integer rvalue <= -37>
The macro yields the minimum integer X, such that 10^X is a normalized, finite representable
value of type float.