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🎨 Make concatenating ct_string and cts_t easier #245

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Merged
lukevalenty merged 1 commit into from
Jul 10, 2025
Merged

🎨 Make concatenating ct_string and cts_t easier #245

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10 changes: 10 additions & 0 deletions include/stdx/ct_string.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,16 @@ constexpr auto operator+(cts_t<X>, cts_t<Y>) {
return cts_t<X + Y>{};
}

template <std::size_t N, ct_string S>
[[nodiscard]] constexpr auto operator+(ct_string<N> const &lhs, cts_t<S> rhs) {
return lhs + +rhs;
}

template <ct_string S, std::size_t N>
[[nodiscard]] constexpr auto operator+(cts_t<S> lhs, ct_string<N> const &rhs) {
return +lhs + rhs;
}

namespace detail {
template <std::size_t N> struct ct_helper<ct_string<N>>;
} // namespace detail
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6 changes: 6 additions & 0 deletions test/ct_string.cpp
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Expand Up @@ -159,3 +159,9 @@ TEST_CASE("cts_t can implicitly convert to ct_string", "[ct_string]") {
using namespace stdx::ct_string_literals;
STATIC_REQUIRE(conversion_success<"Hello"_ctst>);
}

TEST_CASE("operator+ works to concat cts_t and ct_string", "[ct_string]") {
using namespace stdx::ct_string_literals;
STATIC_REQUIRE("Hello"_ctst + " world"_cts == "Hello world"_cts);
STATIC_REQUIRE("Hello"_cts + " world"_ctst == "Hello world"_cts);
}