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

DBL_MAX_EXP
#define DBL_MAX_EXP <integer rvalue>
The macro yields the maximum integer X, such that FLT_RADIX^(X - 1) is a finite
representable value of type double.
DBL_MIN
#define DBL_MIN <double rvalue <= 10^(-37)>
The macro yields the smallest normalized, finite representable value of type double.
DBL_MIN_10_EXP
#define DBL_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 double.
DBL_MIN_EXP
#define DBL_MIN_EXP <integer rvalue>
The macro yields the minimum integer X such that FLT_RADIX^(X - 1) is a normalized, finite
representable value of type double.
FLT_DIG
#define FLT_DIG <integer rvalue >= 6>
The macro yields the precision in decimal digits for type float.
FLT_EPSILON
#define FLT_EPSILON <float rvalue <= 10^(-5)>
The macro yields the smallest X of type float such that 1.0 + X != 1.0.