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8 Commits

Author SHA1 Message Date
Richard Smith 560a3579b2 Update diagnostics now that hexadecimal literals look likely to be part of C++17. 
llvm-svn: 262753
 2016-03-04 22:32:06 +00:00
Richard Smith b1cba3e772 PR26349: correctly check whether a digit sequence is empty in the presence of digit separators. 
llvm-svn: 260307
 2016-02-09 22:34:35 +00:00
Richard Smith 70ee92fa4d Add some missing checks for C++1y digit separators that don't in fact separate 
digits. Turns out we have completely separate lexing codepaths for floating
point numbers depending on whether or not they start with a zero. Who knew...
=)

llvm-svn: 206932
 2014-04-22 23:50:25 +00:00
Richard Smith 86b86973c7 Tests for lexing of digit separators versus UCNs. 
llvm-svn: 202534
 2014-02-28 20:13:19 +00:00
Richard Smith 35ddad0723 Fix a minor bug in lexing pp-numbers with digit separators: if a pp-number contains "'e+", the pp-number ends between the 'e' and the '+'. 
llvm-svn: 202533
 2014-02-28 20:06:02 +00:00
Richard Smith 52d0211ce3 Add macro test from N3781. 
llvm-svn: 191444
 2013-09-26 18:15:22 +00:00
Richard Smith 7f2707a7f4 Per updates to D3781, allow underscore under ' in a pp-number, and allow ' in a #line directive. 
llvm-svn: 191443
 2013-09-26 18:13:20 +00:00
Richard Smith fde9485297 Implement C++1y digit separator proposal (' as a digit separator). This is not 
yet approved by full committee, but was unanimously supported by EWG.

llvm-svn: 191417
 2013-09-26 03:33:06 +00:00