1// RUN: %clang_cc1 -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. 46typedef int x; // expected-note {{previous definition is here}} 47typedef int x; // expected-warning {{redefinition of typedef 'x' is a C11 feature}} 48 49# 192 "glomp.h" 3 // System header. 50typedef int y; // ok 51typedef int y; // ok 52 53typedef int q; // q is in system header. 54 55#line 42 "blonk.h" // doesn't change system headerness. 56 57typedef int z; // ok 58typedef int z; // ok 59 60# 97 // doesn't change system headerness. 61 62typedef int z1; // ok 63typedef int z1; // ok 64 65# 42 "blonk.h" // DOES change system headerness. 66 67typedef int w; // expected-note {{previous definition is here}} 68typedef int w; // expected-warning {{redefinition of typedef 'w' is a C11 feature}} 69 70typedef 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}} 86extern int array[__LINE__ == 10 ? 1:-1]; 87 88# 020 // expected-warning {{GNU line marker directive interprets number as decimal, not octal}} 89extern int array_gnuline[__LINE__ == 20 ? 1:-1]; 90 91/* PR3917 */ 92#line 41 93extern char array2[\ 94_\ 95_LINE__ == 42 ? 1: -1]; /* line marker is location of first _ */ 96 97# 51 98extern 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}} 104undefined t; // expected-error {{unknown type name 'undefined'}} 105 106 107