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* [Bug c/19999] -Wfloat-equal does not warn for complex numbers [not found] <bug-19999-230@http.gcc.gnu.org/bugzilla/> @ 2008-02-21 6:30 ` rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rwild at gcc dot gnu dot org @ 2008-02-21 6:30 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from rwild at gcc dot gnu dot org 2008-02-21 06:29 ------- patch at <http://gcc.gnu.org/ml/gcc-patches/2008-02/msg00897.html> -- rwild at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |Ralf dot Wildenhues at gmx | |dot de Last reconfirmed|2005-12-18 01:40:38 |2008-02-21 06:29:50 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19999 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/19999] -Wfloat-equal does not warn for complex numbers [not found] <bug-19999-230@http.gcc.gnu.org/bugzilla/> 2008-02-21 6:30 ` [Bug c/19999] -Wfloat-equal does not warn for complex numbers rwild at gcc dot gnu dot org @ 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rwild at gcc dot gnu dot org @ 2008-02-22 6:19 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from rwild at gcc dot gnu dot org 2008-02-22 06:18 ------- Subject: Bug 19999 Author: rwild Date: Fri Feb 22 06:17:46 2008 New Revision: 132540 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132540 Log: gcc/: PR c/19999 * c-typeck.c (build_binary_op): Warn about floating point comparisons if FLOAT_TYPE_P, not only for REAL_TYPE. gcc/cp/: * typeck.c (build_binary_op): Warn about floating point comparisons if FLOAT_TYPE_P, not only for REAL_TYPE. gcc/testsuite/: * gcc.dg/Wfloat-equal-1.c: New. * g++.dg/warn/Wfloat-equal-1.C: New. Added: trunk/gcc/testsuite/g++.dg/warn/Wfloat-equal-1.C trunk/gcc/testsuite/gcc.dg/Wfloat-equal-1.c Modified: trunk/gcc/ChangeLog trunk/gcc/c-typeck.c trunk/gcc/cp/ChangeLog trunk/gcc/cp/typeck.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19999 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/19999] -Wfloat-equal does not warn for complex numbers [not found] <bug-19999-230@http.gcc.gnu.org/bugzilla/> 2008-02-21 6:30 ` [Bug c/19999] -Wfloat-equal does not warn for complex numbers rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org @ 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: rwild at gcc dot gnu dot org @ 2008-02-22 6:19 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from rwild at gcc dot gnu dot org 2008-02-22 06:19 ------- Fixed in 4.4. -- rwild at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19999 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/19999] New: -Wfloat-equal does not warn for complex numbers @ 2005-02-16 14:30 jsm28 at gcc dot gnu dot org 2005-02-16 14:56 ` [Bug c/19999] " pinskia at gcc dot gnu dot org 0 siblings, 1 reply; 4+ messages in thread From: jsm28 at gcc dot gnu dot org @ 2005-02-16 14:30 UTC (permalink / raw) To: gcc-bugs -Wfloat-equal warns for comparison of real floating-point numbers, but not for complex numbers. double a, b; _Complex double c, d; int f(void) { return a == b; } int g(void) { return c == d; } warns for the comparison in f, but not for that in g. -- Summary: -Wfloat-equal does not warn for complex numbers Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jsm28 at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19999 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/19999] -Wfloat-equal does not warn for complex numbers 2005-02-16 14:30 [Bug c/19999] New: " jsm28 at gcc dot gnu dot org @ 2005-02-16 14:56 ` pinskia at gcc dot gnu dot org 0 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-02-16 14:56 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-16 06:48 ------- Confirmed, it is easy to see where the problem is when we look at the source: if (warn_float_equal && (code0 == REAL_TYPE || code1 == REAL_TYPE)) warning ("comparing floating point with == or != is unsafe"); We should not be using == REAL_TYPE but FLOAT_TYPE_P instead which also takes into account vectors too (even though we don't define equality for vectors yet). -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Keywords| |diagnostic Last reconfirmed|0000-00-00 00:00:00 |2005-02-16 06:48:38 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19999 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-02-22 6:19 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-19999-230@http.gcc.gnu.org/bugzilla/> 2008-02-21 6:30 ` [Bug c/19999] -Wfloat-equal does not warn for complex numbers rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2008-02-22 6:19 ` rwild at gcc dot gnu dot org 2005-02-16 14:30 [Bug c/19999] New: " jsm28 at gcc dot gnu dot org 2005-02-16 14:56 ` [Bug c/19999] " pinskia at gcc dot gnu dot org
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