Developer Guide and Reference

Contents

min_val

Return the left value if the right value is greater than left, otherwise returns the right value.
#include <sdlt/min_max_val.h>

Syntax

template<typename T> T min_val(const T left, const T right);
Arguments
typename T
The type of the left and right values
Description
C++ implementations of std::min and std::max create a conditional control flow that returns references to its parameters, which may cause inefficient vector code generation. min_val is a really simple template that returns by value instead of reference, allowing more efficient vector code to be generated. For most cases the algorithm didn’t need a reference to the inputs and a copy by value should suffice. It should inline, adding no overhead. Inside of SIMD loops, we suggest using sdlt::min_val in place of std::min.
Requires < operator be defined for the type T.

Product and Performance Information

1

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Notice revision #20110804