The C++ interface for anytrue. More...

array	anytrue (const array &input, int dim=-1)
	Test if all elements are false (zero) along a dimension in `input`. More...

template<typename ty >
ty	anytrue (const array &input)
	Test if all elements are false (zero) in entire array. More...

Detailed Description

The C++ interface for anytrue.

Verify if any of the elements are non zero.

These functions can also be used with conditions as parameters.
In such a case, the input array to the function is a boolean array.

bool hx[] = { true,true,false,true };
array x1(4,1, hx); // 4x1 vector
printf("%d,%d\n", anytrue<bool>(x1))// 0,0
array y1 = randu(100, 1);
array y2 = anytrue(y1 > 0.5);   // y2 is 1 where all values in the
                                // dimension are true, otherwise 0.

Function Documentation

array af::anytrue	(	const array &	input,
		int	dim = `-1`
	)

Test if all elements are false (zero) along a dimension in input.

int in[] = {10,4,1,51,0,3};
array input(2,3,in); // [10  1  0]
                     // [4  51  3]
array result = anytrue(input); //equivalent to \c anytrue(input,0);
// result = [true true false]

Parameters

[in]	input
[in]	dim	dimension along which to operate (-1 indicates first non-singleton dimension)

Returns: boolean array with test results along the dimension dim in the input

ty af::anytrue ( const array & input )

Test if all elements are false (zero) in entire array.

Parameters

[in] input

Returns: true if all elements in input are false (zero), false if any true (nonzero)