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| author | Eric Botcazou <ebotcazou@adacore.com> | 2020-09-24 19:54:16 +0200 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2020-11-24 05:15:59 -0500 |
| commit | 2307a1aeb8ecaf0bac055a13d65eef884cbf22b3 (patch) | |
| tree | e3291ac112a90d51c26da142ffbda13c8998934f /gcc/ada/doc | |
| parent | a1dd66b108cba086f58448ccbe9bf57b0a342f9a (diff) | |
| download | gcc-2307a1aeb8ecaf0bac055a13d65eef884cbf22b3.zip gcc-2307a1aeb8ecaf0bac055a13d65eef884cbf22b3.tar.gz gcc-2307a1aeb8ecaf0bac055a13d65eef884cbf22b3.tar.bz2 | |
[Ada] Document characteristics of decimal fixed point types
gcc/ada/
* doc/gnat_rm/implementation_defined_characteristics.rst: Complete
entry of 3.5.9(10).
* gnat_rm.texi: Regenerate.
Diffstat (limited to 'gcc/ada/doc')
| -rw-r--r-- | gcc/ada/doc/gnat_rm/implementation_defined_characteristics.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/ada/doc/gnat_rm/implementation_defined_characteristics.rst b/gcc/ada/doc/gnat_rm/implementation_defined_characteristics.rst index 3174825..14516e7 100644 --- a/gcc/ada/doc/gnat_rm/implementation_defined_characteristics.rst +++ b/gcc/ada/doc/gnat_rm/implementation_defined_characteristics.rst @@ -153,7 +153,7 @@ The small is the largest power of two that does not exceed the delta. "What combinations of small, range, and digits are supported for fixed point types. See 3.5.9(10)." -For an ordinary fixed point type, the small must lie in 2**(-80) .. 2**80 +For an ordinary fixed point type, the small must lie in 2.0**(-80) .. 2.0**80 and the range in -10.0**36 .. 10.0**36; any combination is permitted that does not result in a mantissa larger than 63 bits. However, if the mantissa is larger than 53 bits on machines where Long_Long_Float is 64 bits (true @@ -161,6 +161,8 @@ of all architectures except x86), then the output from Text_IO may be accurate to only 53 bits, rather than the full mantissa. This is because floating-point conversions may be used to convert fixed point. +For a decimal fixed point type, the small must lie in 10.0**(-18) .. 10.0**18 +and the digits in 1 .. 18. * "The result of ``Tags.Expanded_Name`` for types declared |