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| author |   jca <jca@openbsd.org> | 2017-07-24 22:26:12 +0000 |
|---|---|---|
| committer | jca <jca@openbsd.org> | 2017-07-24 22:26:12 +0000 |
| commit | 88f528382be0dbb2090319b8347648fb91465e20 (patch) | |
| tree | 8c6ffcf647fdb914579859a1ce1c701d53526bfb | |
| parent | Add < and > to the comment describind the grammar. (diff) | |
| download | wireguard-openbsd-88f528382be0dbb2090319b8347648fb91465e20.tar.xz wireguard-openbsd-88f528382be0dbb2090319b8347648fb91465e20.zip | |
Use memmove instead of a hand-rolled loop
A tad faster in my HISTFILE "benchmarks". ok tb@
| -rw-r--r-- | bin/ksh/history.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/bin/ksh/history.c b/bin/ksh/history.c index 93850e54071..c2abb0f924a 100644 --- a/bin/ksh/history.c +++ b/bin/ksh/history.c @@ -1,4 +1,4 @@ -/* $OpenBSD: history.c,v 1.59 2017/05/29 13:09:17 tb Exp $ */ +/* $OpenBSD: history.c,v 1.60 2017/07/24 22:26:12 jca Exp $ */ /* * command history @@ -617,8 +617,9 @@ histsave(int lno, const char *cmd, int dowrite) hp = histptr; if (++hp >= history + histsize) { /* remove oldest command */ afree(*history, APERM); - for (hp = history; hp < history + histsize - 1; hp++) - hp[0] = hp[1]; + memmove(history, history + 1, + (histsize - 1) * sizeof(*history)); + hp = histptr; } *hp = c; histptr = hp; |