回答編集履歴
1
符号の分の文字列を考慮に入れていなかったのを修正
test
CHANGED
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@@ -18,7 +18,7 @@
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constexpr double log10 = 3.32192809489
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static_assert(SIZE > std::numeric_limits<int>::digits / log10 +
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+
static_assert(SIZE > std::numeric_limits<int>::digits / log10 + 2, "hogehoge usage: buffer is too small");
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static_assert(SIZE > DIGIT, "hogehoge usage: buffer is too small");
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