~singpolyma/biboumi

ref: ffb402f0adb9f808c7b8bc9616e71f7b3f8931ac biboumi/src/utils/get_first_non_empty.hpp -rw-r--r-- 372 bytes
ffb402f0 — louiz’ Drop support for botan < 2.0 5 years ago
                                                                                
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#pragma once

#include <string>

bool is_empty(const std::string& val);
bool is_empty(const int& val);

template <typename T>
T get_first_non_empty(T&& last)
{
  return last;
}

template <typename T, typename... Args>
T get_first_non_empty(T&& first, Args&&... args)
{
  if (!is_empty(first))
    return first;
  return get_first_non_empty(std::forward<Args>(args)...);
}