derek.holloway
7502bf64a4
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52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/* RUN: rm -rf %t && mkdir %t
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RUN: cp %s %t/dr324.c
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Note: this file (dr324.c) must be newer than the file used for the
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dependency pragma (dep.c), otherwise we get an unrelated "current file is
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older than dependency" warning. Touch dep.c first to make sure it's
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always older.
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RUN: touch %t/dep.c
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RUN: touch %t/dr324.c
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RUN: %clang_cc1 -std=c89 -fsyntax-only -fms-extensions -pedantic -verify %t/dr324.c
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RUN: %clang_cc1 -std=c99 -fsyntax-only -fms-extensions -pedantic -verify %t/dr324.c
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RUN: %clang_cc1 -std=c11 -fsyntax-only -fms-extensions -pedantic -verify %t/dr324.c
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RUN: %clang_cc1 -std=c17 -fsyntax-only -fms-extensions -pedantic -verify %t/dr324.c
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RUN: %clang_cc1 -std=c2x -fsyntax-only -fms-extensions -pedantic -verify %t/dr324.c
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*/
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/* WG14 DR324: yes
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* Tokenization obscurities
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*/
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/* We need to diagnose an unknown escape sequence in a string or character
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* literal, but not within a header-name terminal.
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*/
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const char *lit_str = "\y"; /* expected-warning {{unknown escape sequence '\y'}} */
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char lit_char = '\y'; /* expected-warning {{unknown escape sequence '\y'}} */
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/* This gets trickier in a pragma where there are implementation-defined
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* locations that may use a header-name production. The first pragma below
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* is using \d but it's in a header-name use rather than a string-literal use.
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* The second pragma is a string-literal and so the \d is invalid there.
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*/
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#ifdef _WIN32
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/* This test only makes sense on Windows targets, where the backslash is a valid
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* path separator.
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*/
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#pragma GCC dependency "oops\..\dep.c"
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#endif
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#pragma message("this has a \t tab escape and an invalid \d escape") /* expected-warning {{this has a tab escape and an invalid d escape}}
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expected-warning {{unknown escape sequence '\d'}}
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*/
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/*
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* Note, this tests the behavior of a non-empty source file that ends with a
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* partial preprocessing token such as an unterminated string or character
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* literal. Thus, it is important that no code be added after this test case.
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*/
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/* expected-error@+3 {{expected identifier or '('}}
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expected-warning@+3 {{missing terminating ' character}}
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*/
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't
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