rublon-ssh/PAM/ssh/include/rublon/static_string.hpp

#pragma once

#include <array>
#include <cstddef>
#include <cstring>

// statically allocates a string buffer of (N+1) chars
template < size_t N >
class StaticString {
  public:
    constexpr StaticString() = default;
    constexpr StaticString(const char * str) {
        std::strncpy(m_str.data(), str, N);
    }

    void operator=(const char * str) {
        std::strncpy(m_str.data(), str, N);
    }

    const char * c_str() const noexcept {
        return &m_str[0];
    }
    
    const char * data() const noexcept {
        return &m_str[0];
    }
    

    std::size_t size() const {
        return strlen(m_str.data());
    }

  private:
    std::array< char, N + 1 > m_str{};
};