| 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 | |
|---|