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848fa212e8
lexer is not a paste operator, it is a normal token. This fixes a conformance issue shown here: http://p99.gforge.inria.fr/c99-conformance/c99-conformance-clang-2.9.html and it defines away the crash from before. llvm-svn: 133005
35 lines
1.6 KiB
C
35 lines
1.6 KiB
C
// RUN: %clang_cc1 -Eonly -verify -pedantic %s
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// pasting ""x"" and ""+"" does not give a valid preprocessing token
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#define XYZ x ## +
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XYZ // expected-error {{pasting formed 'x+', an invalid preprocessing token}}
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#define XXYZ . ## test
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XXYZ // expected-error {{pasting formed '.test', an invalid preprocessing token}}
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// GCC PR 20077
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#define a a ## ## // expected-error {{'##' cannot appear at end of macro expansion}}
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#define b() b ## ## // expected-error {{'##' cannot appear at end of macro expansion}}
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#define c c ## // expected-error {{'##' cannot appear at end of macro expansion}}
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#define d() d ## // expected-error {{'##' cannot appear at end of macro expansion}}
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#define e ## ## e // expected-error {{'##' cannot appear at start of macro expansion}}
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#define f() ## ## f // expected-error {{'##' cannot appear at start of macro expansion}}
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#define g ## g // expected-error {{'##' cannot appear at start of macro expansion}}
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#define h() ## h // expected-error {{'##' cannot appear at start of macro expansion}}
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#define i ## // expected-error {{'##' cannot appear at start of macro expansion}}
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#define j() ## // expected-error {{'##' cannot appear at start of macro expansion}}
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// Invalid token pasting.
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// PR3918
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// When pasting creates poisoned identifiers, we error.
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#pragma GCC poison BLARG
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BLARG // expected-error {{attempt to use a poisoned identifier}}
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#define XX BL ## ARG
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XX // expected-error {{attempt to use a poisoned identifier}}
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#define VA __VA_ ## ARGS__
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int VA; // expected-warning {{__VA_ARGS__ can only appear in the expansion of a C99 variadic macro}}
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