vsip_valltrue_p - Check if All Elements in Boolean Vector are True

Core

This manual is preliminary and incomplete.
While our Core implementation implements all functions given in the standard we are still working on completing this documentation.

Please refer to the VSIPL standard for a complete function reference of the Core profile until we have completed work on this documentation.

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4.5.5 vsip_valltrue_p - Check if All Elements in Boolean Vector are True

vsip_scalar_bl vsip_valltrue_bl(const vsip_vview_bl *a);

Description

This function checks whether all elements in a boolean vector are true. It returns a single boolean value that is true if and only if every element in the input vector is true.

The function performs the following logical operation:

result= a0∧a1 ∧a2∧ ...∧an-1

where $a i$ are the elements of the input vector and $n$ is the length of the vector.

Parameters

const vsip_vview_p* a: Input boolean vector to check.

Return Value

Returns true if all elements in the vector are true.
Returns false if any element in the vector is false or if the vector is empty.

Example

vsip_vview_bl *conditions; 
vsip_length n = 10; 
vsip_scalar_bl all_valid; 
 
// Create and initialize a boolean vector 
conditions = vsip_vcreate_bl(n, VSIP_MEM_NONE); 
 
// Set all elements to true (for demonstration) 
vsip_vfill_bl(conditions, true); 
 
// Check if all conditions are true 
all_valid = vsip_valltrue_bl(conditions); 
if (all_valid) { 
    printf("All conditions are satisfied.\n"); 
} else { 
    printf("Some conditions are not satisfied.\n"); 
} 
 
// For a more practical example: 
for (vsip_length i = 0; i < n; i++) { 
    // Set based on some actual conditions in your algorithm 
    vsip_vput_bl(conditions, i, (i % 2) == 0);  // Only even indices are true 
} 
 
all_valid = vsip_valltrue_bl(conditions); 
// all_valid will be false in this case 
 
// Clean up 
vsip_valldestroy_bl(conditions);

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