Masks

Detailed Description

Mask classes are abstractions for the results of vector comparisons.

The actual implementation differs depending on the SIMD instruction set. On SSE they contain a full 128-bit datatype while on a different architecture they might be bit-fields.

Classes
class	float_m
	Mask object to use with float_v objects. More...
class	double_m
	Mask object to use with double_v objects. More...
class	int_m
	Mask object to use with int_v objects. More...
class	uint_m
	Mask object to use with uint_v objects. More...
class	short_m
	Mask object to use with short_v objects. More...
class	ushort_m
	Mask object to use with ushort_v objects. More...
class	sfloat_m
	Mask object to use with sfloat_v objects. More...

Functions
template<typename T >
std::ostream &	operator<< (std::ostream &s, const typename Vc::Vector< T >::Mask &v)
	Prints the contents of a mask into a stream object.

Function Documentation

std::ostream& operator<<	(	std::ostream &	s,
		const typename Vc::Vector< T >::Mask &	v
	)

Prints the contents of a mask into a stream object.

const Vc::short_m m = Vc::short_v::IndexesFromZero() < 3;
std::cout << m << std::endl;

will output (with SSE):

m[1110 0000]

Parameters

s	Any standard C++ ostream object. For example std::cout or a std::stringstream object.
v	Any Vc mask object.

Returns

The ostream object: to chain multiple stream operations.

Note

With the GNU standard library this function will check, whether the output stream is a tty. In that case it will colorize the output.