Return true if number is not a number (NaN).
Declared in <bdlb_float.h>
static
bool
isNan(float number);
This function is equivalent to the isnan macro in C99. Note that if this method returns true, then either isQuietNan or isSignalingNan will also return true.
true if number is not a number (NaN), and false otherwise
| Name | Description |
|---|---|
| number | floating-point value to test |