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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2014-01-18 16:04:11 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2014-01-18 16:04:32 -0500 |
| commit | 0d79c0a8cc20dbaa39112d78a9abb821c4ca3554 (patch) | |
| tree | fbf44e5fc488b94c056aead354111d4e32167318 /src/backend/tsearch | |
| parent | 7d7eee8bb702d7796a0d7c5886c1f4685f2e2806 (diff) | |
| download | postgresql-0d79c0a8cc20dbaa39112d78a9abb821c4ca3554.tar.gz | |
Make various variables const (read-only).
These changes should generally improve correctness/maintainability.
A nice side benefit is that several kilobytes move from initialized
data to text segment, allowing them to be shared across processes and
probably reducing copy-on-write overhead while forking a new backend.
Unfortunately this doesn't seem to help libpq in the same way (at least
not when it's compiled with -fpic on x86_64), but we can hope the linker
at least collects all nominally-const data together even if it's not
actually part of the text segment.
Also, make pg_encname_tbl[] static in encnames.c, since there seems
no very good reason for any other code to use it; per a suggestion
from Wim Lewis, who independently submitted a patch that was mostly
a subset of this one.
Oskari Saarenmaa, with some editorialization by me
Diffstat (limited to 'src/backend/tsearch')
| -rw-r--r-- | src/backend/tsearch/wparser_def.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/tsearch/wparser_def.c b/src/backend/tsearch/wparser_def.c index 7252d3b616..fa73dff694 100644 --- a/src/backend/tsearch/wparser_def.c +++ b/src/backend/tsearch/wparser_def.c @@ -789,7 +789,7 @@ p_isspecial(TParser *prs) */ if (GetDatabaseEncoding() == PG_UTF8 && prs->usewide) { - static pg_wchar strange_letter[] = { + static const pg_wchar strange_letter[] = { /* * use binary search, so elements should be ordered */ @@ -1023,7 +1023,7 @@ p_isspecial(TParser *prs) 0xAA34, /* CHAM CONSONANT SIGN RA */ 0xAA4D /* CHAM CONSONANT SIGN FINAL H */ }; - pg_wchar *StopLow = strange_letter, + const pg_wchar *StopLow = strange_letter, *StopHigh = strange_letter + lengthof(strange_letter), *StopMiddle; pg_wchar c; |