diff options
Diffstat (limited to 'gcc/ada/libgnat/s-exponr.adb')
| -rw-r--r-- | gcc/ada/libgnat/s-exponr.adb | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/ada/libgnat/s-exponr.adb b/gcc/ada/libgnat/s-exponr.adb index ece53b5..ad7f401 100644 --- a/gcc/ada/libgnat/s-exponr.adb +++ b/gcc/ada/libgnat/s-exponr.adb @@ -57,8 +57,8 @@ function System.Exponr (Left : Num; Right : Integer) return Num is subtype Double_T is Double_Real.Double_T; -- The double floating-point type - subtype Negative is Integer range Integer'First .. -1; - -- The range of negative exponents + subtype Safe_Negative is Integer range Integer'First + 1 .. -1; + -- The range of safe negative exponents function Expon (Left : Num; Right : Natural) return Num; -- Routine used if Right is greater than 4 @@ -113,9 +113,12 @@ begin return Num'Machine (Sqr * Sqr); end; - when Negative => + when Safe_Negative => return Num'Machine (1.0 / Exponr (Left, -Right)); + when Integer'First => + return Num'Machine (1.0 / (Exponr (Left, Integer'Last) * Left)); + when others => return Num'Machine (Expon (Left, Right)); end case; |