c++ の long-double 値が大きくなると増加しません

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Issue

アプリケーションを Red Hat Enterprise Linux 6 に移植し、long-double 変数が 大きな値(例: 1268035319515045691392)に対して増加しなくなります。この場合は、四倍精度のデータ型が必要となります。

Environment

  • Red Hat Enterprise Linux 6

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