August 19, 2010 [Issue 4682] New: Run-time Vs Compile-time of int.min % -1 | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=4682 Summary: Run-time Vs Compile-time of int.min % -1 Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Severity: normal Priority: P2 Component: DMD AssignedTo: nobody@puremagic.com ReportedBy: bearophile_hugs@eml.cc --- Comment #0 from bearophile_hugs@eml.cc 2010-08-19 14:34:54 PDT --- With dmd 2.048 this program gives (on Windows) a runtime error: int foo(int x, int y) { return x % y; } void main() { int r = foo(int.min, -1); } But the same operation done at compile time gives no errors, and foo returns 0: int foo(int x, int y) { return x % y; } static assert(foo(int.min, -1) == 0); void main() {} So one of the two cases is wrong (or both). While floating point operations done at compile-time may give slightly different results, I'd like integral operations to give the same results at compile-time and run-time. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
July 31, 2011 [Issue 4682] [CTFE] Run-time Vs Compile-time of int.min % -1 | ||||
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Posted in reply to bearophile_hugs@eml.cc | http://d.puremagic.com/issues/show_bug.cgi?id=4682 Walter Bright <bugzilla@digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |bugzilla@digitalmars.com Resolution| |FIXED --- Comment #1 from Walter Bright <bugzilla@digitalmars.com> 2011-07-31 12:08:14 PDT --- https://github.com/D-Programming-Language/dmd/commit/7ef3b2bb9e740df39108957ae5e3b2aa8253d351 https://github.com/D-Programming-Language/dmd/pull/284 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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