svml128_log1p_f?

Interface Definition

C interface:

float32x4_t svml128_log1p_f32(float32x4_t src);

float64x2_t svml128_log1p_f64(float64x2_t src);

Parameters

Return Value

• The base-e logarithm y of (x + 1) is returned. y ∈ (-INF, +INF)
• If the input x is ±0, the return value is ±0.
• If the input x is -1, the return value is -INF.
• If the input x is a negative number, the return value is NaN.
• If the input x is +∞, the return value is +∞.
• If the input x is NaN, the return value is NaN.

Dependency

C: "ksvml.h"

Example

C interface:

    float32x4_t src = {0.0f, 2.0f, INFINITY, NAN};
    float32x4_t dst = svml128_log1p_f32(src);
    printf("%.15g  %.15g  %.15g  %.15g\n", dst[0], dst[1], dst[2], dst[3]); 
    /**
     *  Output dst:
     *     0  1.09861228866811  inf  -nan
     *
     */