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| author | Paul Eggert <eggert@cs.ucla.edu> | 2019-03-27 21:03:10 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2019-03-27 21:24:26 -0700 |
| commit | 81795bb71394aac6d7f6f7fd2656b2eb79a39a4d (patch) | |
| tree | ff9f813ebc27ba20ebd502412826d782d223b0f6 /src/regex-emacs.h | |
| parent | eac5f967ca700c5f47cf673cb4c06b07c4f42ac2 (diff) | |
| download | emacs-81795bb71394aac6d7f6f7fd2656b2eb79a39a4d.tar.gz | |
Tweak re_registers allocation
* src/regex-emacs.c (re_match_2_internal):
No need to allocate one extra trailing search register;
Emacs does not use it. Avoid quadratic behavior on
reallocation.
Diffstat (limited to 'src/regex-emacs.h')
| -rw-r--r-- | src/regex-emacs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/regex-emacs.h b/src/regex-emacs.h index 95f743dc2fb..ddf14e0d9e1 100644 --- a/src/regex-emacs.h +++ b/src/regex-emacs.h @@ -98,7 +98,7 @@ struct re_pattern_buffer bool_bf can_be_null : 1; /* If REGS_UNALLOCATED, allocate space in the 'regs' structure - for 'max (RE_NREGS, re_nsub + 1)' groups. + for at least (re_nsub + 1) groups. If REGS_REALLOCATE, reallocate space if necessary. If REGS_FIXED, use what's there. */ unsigned regs_allocated : 2; |