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| author | Jonathan Wakely <jwakely@redhat.com> | 2022-11-04 12:10:32 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2022-11-05 12:37:19 +0000 |
| commit | 1342c7f46e6e3f8f29d7971531a0af18cd8429bc (patch) | |
| tree | a95f77cfdc26564b70b7c0f8e03b78107488a5de | |
| parent | 33561e870dc48966e8c7ede46e95032279a15423 (diff) | |
| download | gcc-1342c7f46e6e3f8f29d7971531a0af18cd8429bc.zip gcc-1342c7f46e6e3f8f29d7971531a0af18cd8429bc.tar.gz gcc-1342c7f46e6e3f8f29d7971531a0af18cd8429bc.tar.bz2 | |
doc: Document correct -fwide-exec-charset defaults [PR41041]
As shown in the PR, the default is not UTF-32 but rather UTF-32BE or
UTF-32LE, avoiding the need for a byte order mark in literals.
gcc/ChangeLog:
PR c/41041
* doc/cppopts.texi: Document -fwide-exec-charset defaults
correctly.
(cherry picked from commit e50ea3a42f058c14ee29327d5277ab0435e3d36b)
| -rw-r--r-- | gcc/doc/cppopts.texi | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/doc/cppopts.texi b/gcc/doc/cppopts.texi index 75c56a3..c0a92b3 100644 --- a/gcc/doc/cppopts.texi +++ b/gcc/doc/cppopts.texi @@ -318,9 +318,10 @@ supported by the system's @code{iconv} library routine. @opindex fwide-exec-charset @cindex character set, wide execution Set the wide execution character set, used for wide string and -character constants. The default is UTF-32 or UTF-16, whichever -corresponds to the width of @code{wchar_t}. As with -@option{-fexec-charset}, @var{charset} can be any encoding supported +character constants. The default is one of UTF-32BE, UTF-32LE, UTF-16BE, +or UTF-16LE, whichever corresponds to the width of @code{wchar_t} and the +big-endian or little-endian byte order being used for code generation. As +with @option{-fexec-charset}, @var{charset} can be any encoding supported by the system's @code{iconv} library routine; however, you will have problems with encodings that do not fit exactly in @code{wchar_t}. |