std::islessequal (3) - Linux Manuals

std::islessequal: std::islessequal


std::islessequal - std::islessequal


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

1-3) Determines if the floating point number x is less than or equal to 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.


x - floating point value
y - floating point value

Return value

true if x <= y, false otherwise


The built-in 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 operator<=.

See also

               function object implementing x <= y
less_equal (class template)

isgreaterequal checks if the first floating-point argument is greater or equal than the second