c_arithmetics Namespace Reference

This namespace declares arithmetic functions in C. More...

Functions
template<typename DataType >
bool	is_equal (DataType x, DataType y)
	Check if two floating point numbers are equal within a tolerance.

Detailed Description

This namespace declares arithmetic functions in C.

See also

c_arithmetics::is_equal

Function Documentation

is_equal()

template<typename DataType >

bool c_arithmetics::is_equal ( DataType  x, DataType  y  )

inline

Check if two floating point numbers are equal within a tolerance.

Parameters

[in]	x	A float number
[in]	y	A float number

Returns

true or false .

Definition at line 49 of file _c_is_equal.h.

    {
        if (std::fabs(x - y) <= 2.0 * std::numeric_limits<DataType>::epsilon())
        {
            return true;
        }
        else
        {
            return false;
        }
    }

Referenced by ConvergenceTools< DataType >::average_estimates(), ConvergenceTools< DataType >::check_convergence(), cMatrixOperations< DataType >::csc_matvec_plus(), cMatrixOperations< DataType >::csc_transposed_matvec_plus(), cMatrixOperations< DataType >::csr_matvec_plus(), cMatrixOperations< DataType >::csr_transposed_matvec_plus(), cMatrixOperations< DataType >::dense_matvec_plus(), cMatrixOperations< DataType >::dense_transposed_matvec_plus(), erf_inv(), cCSCMatrix< DataType >::is_identity_matrix(), cCSRMatrix< DataType >::is_identity_matrix(), cDenseMatrix< DataType >::is_identity_matrix(), and cVectorOperations< DataType >::subtract_scaled_vector().

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