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107 lines
3.8 KiB
107 lines
3.8 KiB
// RUN: %clang_cc1 -std=c99 -fsyntax-only -verify -pedantic %s
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// RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:92:2: error: ABC'
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// RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:93:2: error: DEF'
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#line 'a' // expected-error {{#line directive requires a positive integer argument}}
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#line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
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#line 00 // expected-warning {{#line directive with zero argument is a GNU extension}}
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#line 2147483648 // expected-warning {{C requires #line number to be less than 2147483648, allowed as extension}}
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#line 42 // ok
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#line 42 'a' // expected-error {{invalid filename for #line directive}}
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#line 42 "foo/bar/baz.h" // ok
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// #line directives expand macros.
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#define A 42 "foo"
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#line A
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# 42
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# 42 "foo"
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# 42 "foo" 2 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
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# 42 "foo" 1 3 // enter
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# 42 "foo" 2 3 // exit
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# 42 "foo" 2 3 4 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
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# 42 "foo" 3 4
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# 'a' // expected-error {{invalid preprocessing directive}}
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# 42 'f' // expected-error {{invalid filename for line marker directive}}
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# 42 1 3 // expected-error {{invalid filename for line marker directive}}
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# 42 "foo" 3 1 // expected-error {{invalid flag line marker directive}}
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# 42 "foo" 42 // expected-error {{invalid flag line marker directive}}
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# 42 "foo" 1 2 // expected-error {{invalid flag line marker directive}}
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# 42a33 // expected-error {{GNU line marker directive requires a simple digit sequence}}
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// These are checked by the RUN line.
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#line 92 "blonk.c"
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#error ABC
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#error DEF
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// expected-error@-2 {{ABC}}
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#line 150
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// expected-error@-3 {{DEF}}
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// Verify that linemarker diddling of the system header flag works.
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# 192 "glomp.h" // not a system header.
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typedef int x; // expected-note {{previous definition is here}}
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typedef int x; // expected-warning {{redefinition of typedef 'x' is a C11 feature}}
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# 192 "glomp.h" 3 // System header.
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typedef int y; // ok
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typedef int y; // ok
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typedef int q; // q is in system header.
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#line 42 "blonk.h" // doesn't change system headerness.
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typedef int z; // ok
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typedef int z; // ok
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# 97 // doesn't change system headerness.
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typedef int z1; // ok
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typedef int z1; // ok
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# 42 "blonk.h" // DOES change system headerness.
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typedef int w; // expected-note {{previous definition is here}}
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typedef int w; // expected-warning {{redefinition of typedef 'w' is a C11 feature}}
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typedef int q; // original definition in system header, should not diagnose.
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// This should not produce an "extra tokens at end of #line directive" warning,
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// because #line is allowed to contain expanded tokens.
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#define EMPTY()
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#line 2 "foo.c" EMPTY( )
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#line 2 "foo.c" NONEMPTY( ) // expected-warning{{extra tokens at end of #line directive}}
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// PR3940
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#line 0xf // expected-error {{#line directive requires a simple digit sequence}}
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#line 42U // expected-error {{#line directive requires a simple digit sequence}}
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// Line markers are digit strings interpreted as decimal numbers, this is
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// 10, not 8.
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#line 010 // expected-warning {{#line directive interprets number as decimal, not octal}}
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extern int array[__LINE__ == 10 ? 1:-1];
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# 020 // expected-warning {{GNU line marker directive interprets number as decimal, not octal}}
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extern int array_gnuline[__LINE__ == 20 ? 1:-1];
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/* PR3917 */
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#line 41
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extern char array2[\
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_\
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_LINE__ == 42 ? 1: -1]; /* line marker is location of first _ */
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# 51
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extern char array2_gnuline[\
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_\
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_LINE__ == 52 ? 1: -1]; /* line marker is location of first _ */
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// rdar://11550996
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#line 0 "line-directive.c" // expected-warning {{#line directive with zero argument is a GNU extension}}
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undefined t; // expected-error {{unknown type name 'undefined'}}
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