diff options
| author | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-02-20 13:52:08 +0000 |
|---|---|---|
| committer | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-02-20 13:52:08 +0000 |
| commit | 32de816bbbe685dfa9c2b491b15579cf379d03e4 (patch) | |
| tree | 6f9c2f011ad7373733907f5eea8eb01d6244e444 /gcc/ada/s-os_lib.ads | |
| parent | eb4f7efad4f3a03ac2f9b8162f7d2179c46fb644 (diff) | |
| download | gcc-32de816bbbe685dfa9c2b491b15579cf379d03e4.tar.gz | |
2014-02-20 Vincent Celier <celier@adacore.com>
* errutil.adb (Initialize): Properly initialize entry in table
Warnings when warnings are suppressed.
2014-02-20 Robert Dewar <dewar@adacore.com>
* s-os_lib.ads: Add warning about non-portability of Rename_File.
* sem_util.ads, sem_util.adb (Is_Junk_Name): New function.
* sem_warn.adb: Use Is_Junk_Name to suppress some warnings.
* gnat_ugn.texi: Document no warnings on junk variable names.
* layout.adb: Minor code reorganization (use Ekind_In).
* stringt.adb: Move initialization of Null_String_Id to Initialize
routine.
2014-02-20 Ed Schonberg <schonberg@adacore.com>
* sem_ch13.adb: Initialize optional Element_Id.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@207947 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ada/s-os_lib.ads')
| -rw-r--r-- | gcc/ada/s-os_lib.ads | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ada/s-os_lib.ads b/gcc/ada/s-os_lib.ads index 00aebc24e1a..03557b65597 100644 --- a/gcc/ada/s-os_lib.ads +++ b/gcc/ada/s-os_lib.ads @@ -301,9 +301,14 @@ package System.OS_Lib is New_Name : String; Success : out Boolean); -- Rename a file. Success is set True or False indicating if the rename is - -- successful or not. Note that on some Systems (notably Windows), if there - -- is already an existing file with the name New_Name, that is one of the - -- conditions that can cause failure. + -- successful or not. + -- + -- WARNING: In one very important respect, this function is significantly + -- non-portable. If New_Name already exists then on Unix systems, the call + -- deletes the existing file, and the call signals success. On Windows, the + -- call fails, without doing the rename operation. See also the procedure + -- Ada.Directories.Rename, which portably provides the windows semantics, + -- i.e. fails if the output file already exists. -- The following defines the mode for the Copy_File procedure below. Note -- that "time stamps and other file attributes" in the descriptions below |