derek.holloway
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67 lines
3.0 KiB
C
67 lines
3.0 KiB
C
/* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify
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*/
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// RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -Wno-gnu-zero-variadic-macro-arguments -verify -DOMIT_VARIADIC_MACRO_ARGS -DVARIADIC_MACRO_ARGS_REMOVE_COMMA
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// RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -Wno-variadic-macro-arguments-omitted -verify -DOMIT_VARIADIC_MACRO_ARGS
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/* PR3937 */
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#define zero() 0 /* expected-note 2 {{defined here}} */
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#define one(x) 0 /* expected-note 2 {{defined here}} */
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#define two(x, y) 0 /* expected-note 4 {{defined here}} */
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#define zero_dot(...) 0 /* expected-warning {{variadic macros are a C99 feature}} */
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#define one_dot(x, ...) 0 /* expected-warning {{variadic macros are a C99 feature}} */
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#ifndef OMIT_VARIADIC_MACRO_ARGS
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/* expected-note@-3 2{{macro 'one_dot' defined here}} */
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#endif
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zero()
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zero(1); /* expected-error {{too many arguments provided to function-like macro invocation}} */
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zero(1, 2, 3); /* expected-error {{too many arguments provided to function-like macro invocation}} */
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one() /* ok */
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one(a)
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one(a,) /* expected-error {{too many arguments provided to function-like macro invocation}} \
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expected-warning {{empty macro arguments are a C99 feature}}*/
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one(a, b) /* expected-error {{too many arguments provided to function-like macro invocation}} */
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two() /* expected-error {{too few arguments provided to function-like macro invocation}} */
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two(a) /* expected-error {{too few arguments provided to function-like macro invocation}} */
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two(a,b)
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two(a, ) /* expected-warning {{empty macro arguments are a C99 feature}} */
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two(a,b,c) /* expected-error {{too many arguments provided to function-like macro invocation}} */
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two(
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, /* expected-warning {{empty macro arguments are a C99 feature}} */
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, /* expected-warning {{empty macro arguments are a C99 feature}} \
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expected-error {{too many arguments provided to function-like macro invocation}} */
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) /* expected-warning {{empty macro arguments are a C99 feature}} */
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two(,) /* expected-warning 2 {{empty macro arguments are a C99 feature}} */
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/* PR4006 */
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#define e(...) __VA_ARGS__ /* expected-warning {{variadic macros are a C99 feature}} */
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e(x)
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e()
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zero_dot()
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one_dot(x) /* empty ... argument */
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one_dot() /* empty first argument, elided ... */
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#ifndef OMIT_VARIADIC_MACRO_ARGS
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/* expected-warning@-4 {{passing no argument for the '...' parameter of a variadic macro is a C23 extension}} */
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/* expected-warning@-4 {{passing no argument for the '...' parameter of a variadic macro is a C23 extension}} */
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#endif
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/* Crash with function-like macro test at end of directive. */
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#define E() (i == 0)
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#if E
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#endif
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#define NSAssert(condition, desc, ...) /* expected-warning {{variadic macros are a C99 feature}} */ \
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SomeComplicatedStuff((desc), ##__VA_ARGS__)
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#ifndef VARIADIC_MACRO_ARGS_REMOVE_COMMA
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/* expected-warning@-3 {{token pasting of ',' and '__VA_ARGS__' is a GNU extension}} */
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#endif
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NSAssert(somecond, somedesc)
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