Flatstring Functions

#include <xo/flatstring/flatstring.hpp>

template<typename ...Ts>
constexpr auto xo::flatstring_concat(Ts&&... args) noexcept

Concatenate flatstrings, possibly mixed with C-style char arrays.

Example:

constexpr auto s = flatstring_concat(flatstring("hello"),
                                     ", ",
                                     flatstring("world"));
static_assert(s.capacity == 13);

template<std::size_t N1, std::size_t N2>
constexpr auto operator<=>(const flatstring<N1> &s1, const flatstring<N2> &s2) noexcept

3-way compare for two flatstrings

Example

constexpr auto cmp = (flatstring("foo") <=> flatstring("bar"));
static_assert(cmp != 0);

template<std::size_t N1, std::size_t N2>
constexpr bool operator==(const flatstring<N1> &s1, const flatstring<N2> &s2) noexcept

equality comparison for two flatstrings.

Example

constexpr bool cmp = (flatstring("foo") == flatstring("foo"));
static_assert(cmp == true);

Note

spaceship operator alone isn’t sufficient to get this defined, at least with gcc 13.1