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Use correct signedness in default implementations of wcscmp and wmemcmp

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This commit is contained in:
Andreas Schwab 2011-10-25 15:06:34 +02:00
parent 37822576b8
commit 1f1e194720
3 changed files with 23 additions and 20 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2011-10-25 Andreas Schwab <schwab@redhat.com>
* wcsmbs/wcscmp.c (WCSCMP): Compare as wchar_t, not wint_t.
* wcsmbs/wmemcmp.c (WMEMCMP): Likewise.
* string/test-strchr.c (do_test): Don't generate NUL bytes.
2011-10-25 Ulrich Drepper <drepper@gmail.com>

8
wcsmbs/wcscmp.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
@ -31,12 +31,12 @@ WCSCMP (s1, s2)
const wchar_t *s1;
const wchar_t *s2;
{
wint_t c1, c2;
wchar_t c1, c2;
do
{
c1 = (wint_t) *s1++;
c2 = (wint_t) *s2++;
c1 = *s1++;
c2 = *s2++;
if (c2 == L'\0')
return c1 - c2;
}

32
wcsmbs/wmemcmp.c
View File

@ -29,25 +29,25 @@ WMEMCMP (s1, s2, n)
const wchar_t *s2;
size_t n;
{
register wint_t c1;
register wint_t c2;
register wchar_t c1;
register wchar_t c2;
while (n >= 4)
{
c1 = (wint_t) s1[0];
c2 = (wint_t) s2[0];
c1 = s1[0];
c2 = s2[0];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
c1 = (wint_t) s1[1];
c2 = (wint_t) s2[1];
c1 = s1[1];
c2 = s2[1];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
c1 = (wint_t) s1[2];
c2 = (wint_t) s2[2];
c1 = s1[2];
c2 = s2[2];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
c1 = (wint_t) s1[3];
c2 = (wint_t) s2[3];
c1 = s1[3];
c2 = s2[3];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
s1 += 4;
@ -57,8 +57,8 @@ WMEMCMP (s1, s2, n)
if (n > 0)
{
c1 = (wint_t) s1[0];
c2 = (wint_t) s2[0];
c1 = s1[0];
c2 = s2[0];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
++s1;
@ -67,8 +67,8 @@ WMEMCMP (s1, s2, n)
}
if (n > 0)
{
c1 = (wint_t) s1[0];
c2 = (wint_t) s2[0];
c1 = s1[0];
c2 = s2[0];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
++s1;
@ -77,8 +77,8 @@ WMEMCMP (s1, s2, n)
}
if (n > 0)
{
c1 = (wint_t) s1[0];
c2 = (wint_t) s2[0];
c1 = s1[0];
c2 = s2[0];
if (c1 - c2 != 0)
return c1 > c2 ? 1 : -1;
}