int isunordered (double x,
double y) // if double extension enabled
longn isunordered (doublen x,
doublen y) // if double extension enabled
|
int isunordered (half x,
half y) // if half extension enabled
shortn isunordered (halfn x,
halfn y) // if half extension enabled
|
Description
Test if arguments are unordered. isunordered() takes
arguments x and y, returning non-zero if x or y is NaN, and zero otherwise.
Notes
This function returns a 0 if the specified relation is false and a 1 if the specified relation is true for scalar argument types. It returns a 0 if the specified relation is false and a -1 (i.e. all bits set) if the specified relation is true for vector argument types.
This function can be used with built-in scalar or vector types as arguments and return a scalar vector integer result. The argument type igentype refers to signed integer vector types i.e. char, charn, short, shortn, int, intn, long, and longn.
If extended with cl_khr_fp64, generic type name gentype may indicate double and double{2|4|8|16} as arguments and return values. If extended with cl_khr_fp16, generic type name gentype may indicate half and half{2|4|8|16} as arguments and return values.
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