On Fri, 8 May 2020 at 00:09, Jeffrey Walton via cfe-users < cfe-users@lists.llvm.org> wrote:
> Hi Everyone, > > I'm testing Steven Munroe's pveclib library > (https://github.com/munroesj52/pveclib). It is testing OK with GCC, > but I am having trouble with Clang. > > I've been able to test up to Clang 9 and with/without -std=c11, but I > keep encountering two errors: > > decpowof2.c:30:7: error: GNU decimal type extension not supported > const _Decimal128 decpowof2 [] = { > > decpowof2.c:31:8: error: invalid suffix 'DL' on floating constant > 1.0E+0DL, /* 2**0 */ > > I believe _Decimal128 and the DL suffixes are part of ISO/IEC TS 18661 > or N2341 (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2341.pdf). > Clang does not implement ISO/IEC TS 18661-2 (decimal floating point). It seems like a bug that our diagnostic claims this is a GNU extension, since it's an ISO Technical Specification, but otherwise the diagnostic is accurate. =( We'd accept patches if you felt motivated to contribute an implementation, but a high-quality implementation would likely be a fair amount of work (LLVM has no support for decimal floating-point types yet). I think I am missing the right combination of Clang compiler and options. > > What compiler or options are needed for Clang? > _______________________________________________ > cfe-users mailing list > cfe-users@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users >
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