1 // RUN: %clang_cc1 -std=c99 -fsyntax-only -verify -pedantic %s 2 // RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:92:2: error: ABC' 3 // RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:93:2: error: DEF' 4 5 #line 'a' // expected-error {{#line directive requires a positive integer argument}} 6 #line 0 // expected-warning {{#line directive with zero argument is a GNU extension}} 7 #line 00 // expected-warning {{#line directive with zero argument is a GNU extension}} 8 #line 2147483648 // expected-warning {{C requires #line number to be less than 2147483648, allowed as extension}} 9 #line 42 // ok 10 #line 42 'a' // expected-error {{invalid filename for #line directive}} 11 #line 42 "foo/bar/baz.h" // ok 12 13 14 // #line directives expand macros. 15 #define A 42 "foo" 16 #line A 17 18 # 42 19 # 42 "foo" 20 # 42 "foo" 2 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}} 21 # 42 "foo" 1 3 // enter 22 # 42 "foo" 2 3 // exit 23 # 42 "foo" 2 3 4 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}} 24 # 42 "foo" 3 4 25 26 # 'a' // expected-error {{invalid preprocessing directive}} 27 # 42 'f' // expected-error {{invalid filename for line marker directive}} 28 # 42 1 3 // expected-error {{invalid filename for line marker directive}} 29 # 42 "foo" 3 1 // expected-error {{invalid flag line marker directive}} 30 # 42 "foo" 42 // expected-error {{invalid flag line marker directive}} 31 # 42 "foo" 1 2 // expected-error {{invalid flag line marker directive}} 32 # 42a33 // expected-error {{GNU line marker directive requires a simple digit sequence}} 33 34 // These are checked by the RUN line. 35 #line 92 "blonk.c" 36 #error ABC 37 #error DEF 38 // expected-error@-2 {{ABC}} 39 #line 150 40 // expected-error@-3 {{DEF}} 41 42 43 // Verify that linemarker diddling of the system header flag works. 44 45 # 192 "glomp.h" // not a system header. 46 typedef int x; // expected-note {{previous definition is here}} 47 typedef int x; // expected-warning {{redefinition of typedef 'x' is a C11 feature}} 48 49 # 192 "glomp.h" 3 // System header. 50 typedef int y; // ok 51 typedef int y; // ok 52 53 typedef int q; // q is in system header. 54 55 #line 42 "blonk.h" // doesn't change system headerness. 56 57 typedef int z; // ok 58 typedef int z; // ok 59 60 # 97 // doesn't change system headerness. 61 62 typedef int z1; // ok 63 typedef int z1; // ok 64 65 # 42 "blonk.h" // DOES change system headerness. 66 67 typedef int w; // expected-note {{previous definition is here}} 68 typedef int w; // expected-warning {{redefinition of typedef 'w' is a C11 feature}} 69 70 typedef int q; // original definition in system header, should not diagnose. 71 72 // This should not produce an "extra tokens at end of #line directive" warning, 73 // because #line is allowed to contain expanded tokens. 74 #define EMPTY() 75 #line 2 "foo.c" EMPTY( ) 76 #line 2 "foo.c" NONEMPTY( ) // expected-warning{{extra tokens at end of #line directive}} 77 78 // PR3940 79 #line 0xf // expected-error {{#line directive requires a simple digit sequence}} 80 #line 42U // expected-error {{#line directive requires a simple digit sequence}} 81 82 83 // Line markers are digit strings interpreted as decimal numbers, this is 84 // 10, not 8. 85 #line 010 // expected-warning {{#line directive interprets number as decimal, not octal}} 86 extern int array[__LINE__ == 10 ? 1:-1]; 87 88 # 020 // expected-warning {{GNU line marker directive interprets number as decimal, not octal}} 89 extern int array_gnuline[__LINE__ == 20 ? 1:-1]; 90 91 /* PR3917 */ 92 #line 41 93 extern char array2[\ 94 _\ 95 _LINE__ == 42 ? 1: -1]; /* line marker is location of first _ */ 96 97 # 51 98 extern char array2_gnuline[\ 99 _\ 100 _LINE__ == 52 ? 1: -1]; /* line marker is location of first _ */ 101 102 // rdar://11550996 103 #line 0 "line-directive.c" // expected-warning {{#line directive with zero argument is a GNU extension}} 104 undefined t; // expected-error {{unknown type name 'undefined'}} 105 106 107