simdpp::isnan

 

libsimdpp

Types

Capabilities

Operations

Conversions

Bitwise operations

Floating-point operations

Integer operations

Memory access operations

Shuffle operations

Miscellaneous operations

 

Floating-point operations

Elementary operations
add sub	mul div	fmadd fmsub	neg
Rounding
round ceil	floor trunc
Comparisons
cmp_eq cmp_neq	cmp_lt cmp_le	cmp_gt cmp_ge
Reduction
reduce_add reduce_min	reduce_mul reduce_max
Miscellaneous
abs sign	min max	isnan isnan2
Square root and reciprocal
sqrt	rcp_e rcp_rh	rsqrt_e rsqrt_rh

 

template<unsigned N, class E> Ret<N, _DETAIL_> isnan( Vec<N,E> a );

Checks if the values in the floating-point vector a are Not-a-Number values. The implementation behaves as if the following set of overloads is provided:

Ret	Vec
mask_float32	float32
mask_float64	float64

The return type is a vector expression.

Parameters

a

-

floating-point vector

Return value

A vector expression evaluating for each value to all bits set if corresponding value is not a number and zero otherwise.

Equivalent operation

r0 = isnan(a0) ? 0xff...00 : 0
...
rN = isnan(aN) ? 0xff...00 : 0