The header limits
defines
traits classes to give access to various implementation
defined-aspects of the fundamental types. The traits classes --
fourteen in total -- are all specializations of the template class
numeric_limits
, documented here
and defined as follows:
template<typename T> struct class { static const bool is_specialized; static T max() throw(); static T min() throw(); static const int digits; static const int digits10; static const bool is_signed; static const bool is_integer; static const bool is_exact; static const int radix; static T epsilon() throw(); static T round_error() throw(); static const int min_exponent; static const int min_exponent10; static const int max_exponent; static const int max_exponent10; static const bool has_infinity; static const bool has_quiet_NaN; static const bool has_signaling_NaN; static const float_denorm_style has_denorm; static const bool has_denorm_loss; static T infinity() throw(); static T quiet_NaN() throw(); static T denorm_min() throw(); static const bool is_iec559; static const bool is_bounded; static const bool is_modulo; static const bool traps; static const bool tinyness_before; static const float_round_style round_style; };