NAME¶

std::islessgreater - std::islessgreater

Synopsis¶

Defined in header <cmath>
bool islessgreater( float x, float y ); (1) (since C++11)
(constexpr since C++23)
bool islessgreater( double x, double y ); (2) (since C++11)
(constexpr since C++23)
bool islessgreater( long double x, long double y ); (3) (since C++11)
(constexpr since C++23)
bool islessgreater( Arithmetic x, Arithmetic y ); (4) (since C++11)
(constexpr since C++23)

1-3) Determines if the floating point number x is less than or greater than the
floating-point number y, without setting floating-point exceptions.
4) A set of overloads or a function template for all combinations of arguments of
arithmetic type not covered by (1-3). If any argument has integral type, it is cast
to double.

Parameters¶

x - floating point value
y - floating point value

Return value¶

true if x < y || x > y, false otherwise

Notes¶

The built-in operator< and operator> for floating-point numbers may raise FE_INVALID
if one or both of the arguments is NaN. This function is a "quiet" version of the
expression x < y || x > y.

See also¶

isless checks if the first floating-point argument is less than the second
(C++11) (function)
isgreater checks if the first floating-point argument is greater than the second
(C++11) (function)