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@ -9,6 +9,9 @@
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#include <type_traits>
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constexpr char digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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constexpr auto digit_count = sizeof(digits) / sizeof(digits[0]);
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/**
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* @struct to_string_t
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* @brief Provides the ability to convert any integral to a string at compile-time.
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@ -17,7 +20,7 @@
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*/
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template<auto N, unsigned 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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std::enable_if_t<(base > 1 && base < digit_count), int> = 0>
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struct to_string_t {
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// The lambda calculates what the string length of N will be, so that `buf`
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// fits to the number perfectly.
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@ -35,7 +38,7 @@ struct to_string_t {
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auto ptr = buf + sizeof(buf) / sizeof(buf[0]);
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*--ptr = '\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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*--ptr = digits[n % base];
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if (N < 0)
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*--ptr = '-';
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} else {
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