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@ -15,7 +15,7 @@
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* @tparam N Number to convert
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* @tparam base Desired base, can be from 2 to 36
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*/
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template<auto N, unsigned int base, typename char_type,
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template<auto N, int base, typename char_type,
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std::enable_if_t<std::is_integral_v<decltype(N)>, int> = 0,
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std::enable_if_t<(base > 1 && base < 37), int> = 0>
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class to_string_t {
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@ -23,7 +23,7 @@ class to_string_t {
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// fits to the number perfectly.
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char_type buf[([]() constexpr noexcept {
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unsigned int len = N > 0 ? 1 : 2;
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for (auto n = N < 0 ? -N : N; n; len++, n /= base);
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for (auto n = N; n; len++, n /= base);
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return len;
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}())] = {};
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@ -35,8 +35,8 @@ class to_string_t {
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auto ptr = end();
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*--ptr = '\0';
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if (N != 0) {
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for (auto n = N < 0 ? -N : N; n; n /= base)
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*--ptr = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[n % base];
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for (auto n = N; n; n /= base)
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*--ptr = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[(N < 0 ? -1 : 1) * (n % base)];
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if (N < 0)
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*--ptr = '-';
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} else {
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