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vDSP_vmaxmg

Calculates the single-precision maximum magnitude of the corresponding values of two vectors using specified strides.

Declaration

void vDSP_vmaxmg(const float *__A, vDSP_Stride __IA, const float *__B, vDSP_Stride __IB, float *__C, vDSP_Stride __IC, vDSP_Length __N);

Parameters

  • __A:

    Single-precision real input vector.

  • __IA:

    Stride for A.

  • __B:

    Single-precision real input vector.

  • __IB:

    Stride for B.

  • __C:

    Single-precision real output vector.

  • __IC:

    Stride for C.

  • __N:

    The number of elements to process

Discussion

This function compares the magnitudes (absolute values) of the first N elements of A with corresponding elements of B, leaving the greater (or equal) values as corresponding elements of C:

for (n = 0; n < N; ++n)
    C[n] = |B[n]| <= |A[n]| ? |A[n]| : |B[n]|;