minmax

eve::minmax = functor<minmax_t>

inlineconstexpr

Header file

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
   // Regular overloads
   constexpr auto minmax(eve::value auto x, eve::value auto ... xs)                 noexcept; // 1
   constexpr auto minmax(kumi::non_empty_product_type auto const& tup)              noexcept; // 2
 
   // Lanes masking
   constexpr auto minmax[conditional_expr auto c](/* any of the above overloads */) noexcept; // 3
   constexpr auto minmax[logical_value auto m](/* any of the above overloads */)    noexcept; // 3
 
   // Exclusive Semantic options - Only one of those can be set at once
   constexpr auto minmax[pedantic](/* any of the above overloads */)                noexcept; // 4
   constexpr auto minmax[numeric ](/* any of the above overloads */)                noexcept; // 4
}

Parameters

• x, xs...: arguments.
• tup: non empty tuple of arguments.
• c: Conditional expression masking the operation.
• m: Logical value masking the operation.

Return value

1. A kumi::tuple containing the value of the minimum and the maximum of the arguments.
2. Equivalent to the call on the elements of the tuple.
3. The operation is performed conditionnaly
4. Equivalent to {min[o], max[o]} where o is one of these two options.

Note

• If any element of the inputs is a Nan, the corresponding output element is system-dependent.

Example

// revision 0
#include <eve/module/core.hpp>
#include <iostream>
 
int main()
{
  eve::wide wf0{0.0, 1.0, 2.0, 3.0, -1.0, -2.0, -3.0, -4.0};
  eve::wide wf1{0.0, -4.0, 1.0, -1.0, 2.0, -2.0, 3.0, -3.0};
  eve::wide wi0{0, 1, 2, 3, -1, -2, -3, -4};
  eve::wide wi1{0, -4, 1, -1, 2, -2, 3, -3};
  eve::wide wu0{0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u};
  eve::wide wu1{7u, 6u, 5u, 4u, 3u, 2u, 1u, 0u};
 
  std::cout << "<- wf0                              = " << wf0 << "\n";
  std::cout << "<- wf1                              = " << wf1 << "\n";
  std::cout << "<- wi0                              = " << wi0 << "\n";
  std::cout << "<- wi1                              = " << wi1 << "\n";
  std::cout << "<- wu0                              = " << wu0 << "\n";
  std::cout << "<- wu1                              = " << wu1 << "\n";
                                                    
  std::cout << "-> minmax(wf0, wf1)                 = " << eve::minmax(wf0, wf1) << "\n";
  std::cout << "-> minmax[ignore_last(2)](wf0, wf1) = " << eve::minmax[eve::ignore_last(2)](wf0, wf1) << "\n";
  std::cout << "-> minmax[wf0 != 0](wf0, wf1)       = " << eve::minmax[wf0 != 0](wf0, wf1) << "\n";
  std::cout << "-> minmax[pedantic](wf0, wf1)       = " << eve::minmax[eve::pedantic](wf0, wf1) << "\n";
  std::cout << "-> minmax[numeric ](wf0, wf1)       = " << eve::minmax[eve::numeric ](wf0, wf1) << "\n";
  std::cout << "-> minmax(wu0, wu1)                 = " << eve::minmax(wu0, wu1) << "\n";
  std::cout << "-> minmax(wi0, wi1)                 = " << eve::minmax(wi0, wi1) << "\n";
}

Semantic Modifiers

• Masked Call

  The call eve::minmax[mask](x, ...) provides a masked version of minmax which is equivalent to if_else(mask, minmax(x, ...), zip(x, x))

  Example

  // revision 0
  #include <eve/module/core.hpp>
  #include <iostream>
   
  int main()
  {
    eve::wide wf0{0.0, 1.0, 2.0, 3.0, -1.0, -2.0, -3.0, -4.0};
    eve::wide wf1{0.0, -4.0, 1.0, -1.0, 2.0, -2.0, 3.0, -3.0};
    eve::wide wi0{0, 1, 2, 3, -1, -2, -3, -4};
    eve::wide wi1{0, -4, 1, -1, 2, -2, 3, -3};
    eve::wide wu0{0u, 1u, 2u, 3u, 4u, 5u, 6u, 7u};
    eve::wide wu1{7u, 6u, 5u, 4u, 3u, 2u, 1u, 0u};
   
    std::cout << "<- wf0                              = " << wf0 << "\n";
    std::cout << "<- wf1                              = " << wf1 << "\n";
    std::cout << "<- wi0                              = " << wi0 << "\n";
    std::cout << "<- wi1                              = " << wi1 << "\n";
    std::cout << "<- wu0                              = " << wu0 << "\n";
    std::cout << "<- wu1                              = " << wu1 << "\n";
                                                      
    std::cout << "-> minmax(wf0, wf1)                 = " << eve::minmax(wf0, wf1) << "\n";
    std::cout << "-> minmax[ignore_last(2)](wf0, wf1) = " << eve::minmax[eve::ignore_last(2)](wf0, wf1) << "\n";
    std::cout << "-> minmax[wf0 != 0](wf0, wf1)       = " << eve::minmax[wf0 != 0](wf0, wf1) << "\n";
    std::cout << "-> minmax[pedantic](wf0, wf1)       = " << eve::minmax[eve::pedantic](wf0, wf1) << "\n";
    std::cout << "-> minmax[numeric ](wf0, wf1)       = " << eve::minmax[eve::numeric ](wf0, wf1) << "\n";
    std::cout << "-> minmax(wu0, wu1)                 = " << eve::minmax(wu0, wu1) << "\n";
    std::cout << "-> minmax(wi0, wi1)                 = " << eve::minmax(wi0, wi1) << "\n";
  }