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| author | Eric Botcazou <ebotcazou@adacore.com> | 2020-11-28 14:05:53 +0100 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2020-12-16 08:01:02 -0500 |
| commit | 1053ff8a3a8bde5498476e544b40fc9cdc5ee888 (patch) | |
| tree | 77cde072d1654d3cde8d34fe3ed5b90d10cf6c70 /gcc | |
| parent | 61c91059b966798928c805746eb64b11fbeab373 (diff) | |
| download | gcc-1053ff8a3a8bde5498476e544b40fc9cdc5ee888.zip gcc-1053ff8a3a8bde5498476e544b40fc9cdc5ee888.tar.gz gcc-1053ff8a3a8bde5498476e544b40fc9cdc5ee888.tar.bz2 | |
[Ada] Fix glitch in comment of System.Powten_Table
gcc/ada/
* libgnat/s-powtab.ads (Maxpow): Use explicit formula in comment.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ada/libgnat/s-powtab.ads | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/ada/libgnat/s-powtab.ads b/gcc/ada/libgnat/s-powtab.ads index ef8d74a..79982b9 100644 --- a/gcc/ada/libgnat/s-powtab.ads +++ b/gcc/ada/libgnat/s-powtab.ads @@ -36,9 +36,9 @@ package System.Powten_Table is Maxpow : constant := 22; -- The number of entries in this table is chosen to include powers of ten - -- that are exactly representable with long_long_float. Assuming that on - -- all targets we have 53 bits of mantissa for the type, the upper bound is - -- given by 53/(log 5). If the scaling factor for a string is greater than + -- that are exactly representable with Long_Long_Float. Assuming that on + -- all targets we have 53 bits of mantissa for the type, the upper bound + -- is given by 53 * log 2 / log 5. If the scaling factor is greater than -- Maxpow, it can be obtained by several multiplications, which is less -- efficient than with a bigger table, but avoids anomalies at end points. |