[PATCH] D87962: [clang] Change the multi-character character constants from extension to implementation-defined.

[Chuyang Chen via Phabricator via cfe-commits]

nomanous created this revision.
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The multi-character character constants should be implementation-defined according to the C standard but actually were made to be extension, which would cause errors when using clang with option "-pedantic-errors". This patch  fixes it and it is for bug #46797 on the Bugzilla system.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87962

Files:
  clang/include/clang/Basic/DiagnosticLexKinds.td
  clang/test/CXX/lex/lex.literal/lex.ccon/p1.cpp
  clang/test/FixIt/format.m
  clang/test/Lexer/multi-character-character-constant.c
  clang/test/Preprocessor/expr_multichar.c

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