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Avoid 'warning: implicit conversion changes signedness' in output code.

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This commit is contained in:
Bruno Haible
2016-11-26 01:05:14 +01:00
parent efd1fd8439
commit b3356507ce
10 changed files with 20 additions and 10 deletions
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8
ChangeLog
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@@ -1,3 +1,11 @@
2016-11-26 Bruno Haible <bruno@clisp.org>
Avoid 'warning: implicit conversion changes signedness' in output code.
* src/output.cc (Output::output_hash_function): Emit declaration of
'hval' as 'unsigned int', not 'int'.
* tests/*.exp: Update.
Reported at <https://savannah.gnu.org/bugs/?44887>.
2016-11-25 Bruno Haible <bruno@clisp.org>
Fix g++ -Wall warnings.

6
src/output.cc
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@@ -1,5 +1,5 @@
/* Output routines.
Copyright (C) 1989-1998, 2000, 2002-2004, 2006-2007, 2009, 2011-2012 Free Software Foundation, Inc.
Copyright (C) 1989-1998, 2000, 2002-2004, 2006-2007, 2009, 2011-2012, 2016 Free Software Foundation, Inc.
Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
and Bruno Haible <bruno@clisp.org>.
@@ -906,7 +906,9 @@ Output::output_hash_function () const
else
{
/* We've got to use the correct, but brute force, technique. */
printf (" register int hval = %s;\n\n"
/* It doesn't really matter whether hval is an 'int' or
'unsigned int', but 'unsigned int' gives fewer warnings. */
printf (" register unsigned int hval = %s;\n\n"
" switch (%s)\n"
" {\n"
" default:\n",

2
tests/c-parse.exp
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@@ -80,7 +80,7 @@ hash (str, len)
126, 126, 126, 126, 126, 126, 126, 126, 126, 126,
126, 126, 126, 126, 126, 126
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/charsets.exp
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@@ -87,7 +87,7 @@ hash (register const char *str, register unsigned int len)
5046, 5046, 5046, 5046, 5046, 5046, 5046, 5046, 5046, 5046,
5046, 5046, 5046, 5046, 5046, 5046, 5046, 5046, 5046
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/chill.exp
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@@ -78,7 +78,7 @@ hash (str, len)
1050, 1050, 1050, 1050, 1050, 1050, 1050, 1050, 1050, 1050,
1050, 1050, 1050, 1050, 1050, 1050, 1050
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/cplusplus.exp
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@@ -80,7 +80,7 @@ hash (str, len)
164, 164, 164, 164, 164, 164, 164, 164, 164, 164,
164, 164, 164, 164, 164, 164
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/java.exp
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@@ -104,7 +104,7 @@ hash (str, len)
77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
77, 77, 77, 77, 77, 77
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/languages.exp
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@@ -91,7 +91,7 @@ hash (register const char *str, register unsigned int len)
3861, 3861, 3861, 3861, 3861, 3861, 3861, 3861, 3861, 3861,
3861, 3861, 3861, 3861, 3861
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{

2
tests/modula2.exp
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@@ -75,7 +75,7 @@ hash (register const char *str, register unsigned int len)
156, 156, 156, 156, 156, 156, 156, 156, 156, 156,
156, 156, 156, 156, 156, 156
};
register int hval = 0;
register unsigned int hval = 0;
switch (len)
{

2
tests/objc.exp
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@@ -78,7 +78,7 @@ hash (register const char *str, register unsigned int len)
96, 96, 96, 96, 96, 96, 96, 96, 96, 96,
96, 96, 96, 96, 96, 96
};
register int hval = len;
register unsigned int hval = len;
switch (hval)
{