| Defined in header <cmath> | ||
|---|---|---|
bool isless( float x, float y ); | (1) | (since C++11) |
bool isless( double x, double y ); | (2) | (since C++11) |
bool isless( long double x, long double y ); | (3) | (since C++11) |
bool isless( Arithmetic x, Arithmetic y ); | (4) | (since C++11) |
1-3) Determines if the floating point number
x is less 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, false otherwise.
Notes
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 (class template) | |
| (C++11) | checks if the first floating-point argument is greater than the second (function) |
C documentation for isless | |
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