diff options
Diffstat (limited to 'gcc/ada/a-stwise.adb')
| -rw-r--r-- | gcc/ada/a-stwise.adb | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ada/a-stwise.adb b/gcc/ada/a-stwise.adb index c5fb0be..0e22f64 100644 --- a/gcc/ada/a-stwise.adb +++ b/gcc/ada/a-stwise.adb @@ -77,6 +77,7 @@ package body Ada.Strings.Wide_Search is Num : Natural; Ind : Natural; Cur : Natural; + begin if Pattern = "" then raise Pattern_Error; @@ -233,9 +234,14 @@ package body Ada.Strings.Wide_Search is return Natural is PL1 : constant Integer := Pattern'Length - 1; - Ind : Integer; -- can be negative if Pattern'Length > Source'Length Cur : Natural; + Ind : Integer; + -- Index for start of match check. This can be negative if the pattern + -- length is greater than the string length, which is why this variable + -- is Integer instead of Natural. In this case, the search loops do not + -- execute at all, so this Ind value is never used. + begin if Pattern = "" then raise Pattern_Error; |