comparisons.hpp File Reference

Defines element-wise comparison operations for tensor expressions. More...

#include "concepts.hpp"
#include "shape.hpp"
#include "tensor.hpp"

Include dependency graph for comparisons.hpp:

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Classes
class	tannic::expression::Comparison< Criteria, First, Second >
	Expression template for element-wise tensor comparisons. More...
struct	tannic::expression::EQ
struct	tannic::expression::NE
struct	tannic::expression::GT
struct	tannic::expression::GE
struct	tannic::expression::LT
struct	tannic::expression::LE

Namespaces
namespace	tannic
namespace	tannic::expression

Functions
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator== (First &&lhs, Second &&rhs)
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator!= (First &&lhs, Second &&rhs)
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator< (First &&lhs, Second &&rhs)
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator<= (First &&lhs, Second &&rhs)
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator> (First &&lhs, Second &&rhs)
template<Expression First, Expression Second>
constexpr auto	tannic::expression::operator>= (First &&lhs, Second &&rhs)
bool	tannic::expression::allclose (Tensor const &first, Tensor const &second, double rtol=1e-5f, double atol=1e-8f)
	Determine whether two tensors are element-wise equal within a tolerance.

Detailed Description

Defines element-wise comparison operations for tensor expressions.

Author

Eric Hermosis

Date

2025

This header provides lazy-evaluated comparison operators for Tensor and expression types. All comparisons are element-wise and produce boolean tensors of the same shape as the operands.

Supported operators:

• Equality and inequality:
  • == (equal)
  • != (not equal)
• Relational comparisons:
  • < (less than)
  • <= (less than or equal)
  • > (greater than)
  • >= (greater than or equal)

Example

#include <iostream>
#include <tannic.hpp>
#include <tannic/comparisons.hpp>
 
using namespace tannic;
 
int main() {
    Tensor A = {1, 2, 3, 4, 5};
    Tensor B = {5, 4, 3, 2, 1};
 
    std::cout << "A == B: " << (A == B) << std::endl;
    std::cout << "A != B: " << (A != B) << std::endl;
    std::cout << "A >  B: " << (A >  B) << std::endl;
    std::cout << "A >= B: " << (A >= B) << std::endl;
    std::cout << "A <  B: " << (A <  B) << std::endl;
    std::cout << "A <= B: " << (A <= B) << std::endl;
}

Part of the Tannic Tensor Library.