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cda4b6dd00
Previously, a line like
// expected-error-re {{foo}}
treats the entirety of foo as a regex. This is inconvenient when matching type
names containing regex characters. For example, to match
"void *(class test8::A::*)(void)" inside such a regex, one would have to type
"void \*\(class test8::A::\*\)\(void\)".
This patch changes the semantics of expected-error-re to only treat the parts
of the directive wrapped in double curly braces as regexes. This avoids the
escaping problem and leads to nicer patterns for those cases; see e.g. the
change to test/Sema/format-strings-scanf.c.
(The balanced search for closing }} of a directive also makes us handle the
full directive in test\SemaCXX\constexpr-printing.cpp:41 and :53.)
Differential Revision: http://llvm-reviews.chandlerc.com/D2388
llvm-svn: 197092
16 lines
1.0 KiB
C++
16 lines
1.0 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -pedantic %s
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float f = 0x1p+1; // expected-warning{{hexadecimal floating constants are a C99 feature}}
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double e = 0x.p0; //expected-error{{hexadecimal floating constants require a significand}}
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double d = 0x.2p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
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float g = 0x1.2p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
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double h = 0x1.p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
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// PR12717: In order to minimally diverge from the C++ standard, we do not lex
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// 'p[+-]' as part of a pp-number unless the token starts 0x and doesn't contain
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// an underscore.
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double i = 0p+3; // expected-error{{invalid suffix 'p' on integer constant}}
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#define PREFIX(x) foo ## x
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double foo0p = 1, j = PREFIX(0p+3); // ok
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double k = 0x42_amp+3; // expected-error-re{{{{invalid suffix '_amp' on integer constant|no matching literal operator for call to 'operator "" _amp'}}}}
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