digitalmars.D.bugs - [Issue 20759] New: Invalid printf checks for long double on win64
- d-bugmail puremagic.com (30/30) Apr 22 2020 https://issues.dlang.org/show_bug.cgi?id=20759
https://issues.dlang.org/show_bug.cgi?id=20759 Issue ID: 20759 Summary: Invalid printf checks for long double on win64 Product: D Version: D2 Hardware: x86_64 OS: Windows Status: NEW Severity: minor Priority: P1 Component: dmd Assignee: nobody puremagic.com Reporter: moonlightsentinel disroot.org DMDs printf check does not handle C's long double properly on Win64 (which is equivalent to D's double according to e.g. https://docs.microsoft.com/en-us/cpp/cpp/fundamental-types-cpp?view=vs-2015) =========================================== import core.stdc.config : c_long_double; import core.stdc.stdio : printf; void main() { // c_long_double is double on win64 printf("%Lg", c_long_double.init); // Invalid deprecation printf("%Lg", real.init); // Silently accepted } =========================================== dmd -m64 printf.d printf.d(7): Deprecation: argument nan for format specification "%Lg" must be real, not double --
Apr 22 2020