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

#define LDBL_MAX <long double rvalue >= 10^37>
#define LDBL_MAX_10_EXP <integer rvalue >= 37>
#define LDBL_MAX_EXP <integer rvalue>
#define LDBL_MIN <long double rvalue <= 10^(-37)>
#define LDBL_MIN_10_EXP <integer rvalue <= -37>
#define LDBL_MIN_EXP <integer rvalue>
DBL_DIG
#define DBL_DIG <integer rvalue >= 10>
The macro yields the precision in decimal digits for type double.
DBL_EPSILON
#define DBL_EPSILON <double rvalue <= 10^(-9)>
The macro yields the smallest X of type double such that 1.0 + X != 1.0.
DBL_MANT_DIG
#define DBL_MANT_DIG <integer rvalue>
The macro yields the number of mantissa digits, base FLT_RADIX, for type double.
DBL_MAX
#define DBL_MAX <double rvalue >= 10^37>
The macro yields the largest finite representable value of type double.
DBL_MAX_10_EXP
#define DBL_MAX_10_EXP <integer rvalue >= 37>
The macro yields the maximum integer X, such that 10^X is a finite representable value of type
double.