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tests: enable -Wsign-compare and fix corresponding warnings

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-Wsign-compare was disabled for bison's own code, following gnulib's
approach.  However, the generated parsers should not trigger such
warnings.

Reported by Efi Fogel.
http://lists.gnu.org/archive/html/help-bison/2013-04/msg00018.html

See also http://stackoverflow.com/questions/16101062 for the weird
"-(unsigned)i" piece of code.

* configure.ac (warn_tests): Enable -Wsign-compare.
* data/location.cc (position::add_): New.
(position::lines, position::columns): Use it.
* tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): Fix signedness issues.
This commit is contained in:
Akim Demaille
2013-04-19 17:13:07 +02:00
parent 6ce4b4ff1b
commit 7ba01e111c
4 changed files with 18 additions and 14 deletions
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10
tests/actions.at
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@@ -605,11 +605,11 @@ static
{
static unsigned int counter = 0;
int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++;
unsigned int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++;
/* As in BASIC, line numbers go from 10 to 10. */
]AT_LOC_FIRST_LINE[ = ]AT_LOC_FIRST_COLUMN[ = 10 * c;
]AT_LOC_LAST_LINE[ = ]AT_LOC_LAST_COLUMN[ = ]AT_LOC_FIRST_LINE[ + 9;
assert (0 <= c && c <= strlen (source));
assert (c <= strlen (source));
if (source[c])
fprintf (stderr, "sending: '%c'", source[c]);
else
@@ -848,13 +848,13 @@ AT_CLEANUP
AT_CHECK_PRINTER_AND_DESTRUCTOR([])
AT_CHECK_PRINTER_AND_DESTRUCTOR([], [with union])
AT_CHECK_PRINTER_AND_DESTRUCTOR([], [ with union])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"], [with union])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"], [ with union])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])
AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [ with union])