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Sat Jun 15 20:30:01 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>

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* read.c (find_char_unquote): Avoid calling strlen on every call
	just to throw away the value most of the time.
This commit is contained in:
Roland McGrath 1996-06-22 19:26:13 +00:00
parent 2529deb2bf
commit 783e6680b2
1 changed files with 4 additions and 1 deletions
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5
read.c
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@ -1509,7 +1509,7 @@ find_char_unquote (string, stopchars, blank)
char *stopchars;
int blank;
{
unsigned int string_len = strlen (string);
unsigned int string_len = 0;
register char *p = string;
while (1)
@ -1527,6 +1527,9 @@ find_char_unquote (string, stopchars, blank)
while (&p[i] >= string && p[i] == '\\')
--i;
++i;
/* Only compute the length if really needed. */
if (string_len == 0)
string_len = strlen (string);
/* The number of backslashes is now -I.
Copy P over itself to swallow half of them. */
bcopy (&p[i / 2], &p[i], (string_len - (p - string)) - (i / 2) + 1);