// RUN: %clang_cc1 -std=c99 -fsyntax-only -verify -pedantic %s
// RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:92:2: error: ABC'
// RUN: not %clang_cc1 -E %s 2>&1 | grep 'blonk.c:93:2: error: DEF'
// RUN: not %clang_cc1 -E %s 2>&1 | grep 'line-directive.c:11:2: error: MAIN7'
// RUN: not %clang_cc1 -E %s 2>&1 | grep 'enter-1:118:2: error: ENTER1'
// RUN: not %clang_cc1 -E %s 2>&1 | grep 'main:121:2: error: MAIN2'
// expected-error@+1{{cannot pop empty include stack}}
# 20 "" 2
// a push/pop before any other line control
# 10 "enter-0" 1 // expected-warning {{this style of line directive is a GNU extension}}
# 11 "" 2 // pop to main file: expected-warning {{this style of line directive is a GNU extension}}
#error MAIN7
// expected-error@-1{{MAIN7}}
#line 'a' // expected-error {{#line directive requires a positive integer argument}}
#line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
#line 00 // expected-warning {{#line directive with zero argument is a GNU extension}}
#line 2147483648 // expected-warning {{C requires #line number to be less than 2147483648, allowed as extension}}
#line 42 // ok
#line 42 'a' // expected-error {{invalid filename for #line directive}}
#line 42 "foo/bar/baz.h" // ok
// #line directives expand macros.
#define A 42 "foo"
#line A
# 42 // expected-warning {{this style of line directive is a GNU extension}}
# 42 "foo" // expected-warning {{this style of line directive is a GNU extension}}
# 42 "foo" 2 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
// The next two lines do not get diagnosed because they are considered to be
// within the system header, where diagnostics are suppressed.
# 42 "foo" 1 3 // enter
# 42 "foo" 2 3 // exit
# 42 "foo" 2 3 4 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
# 42 "foo" 3 4 // expected-warning {{this style of line directive is a GNU extension}}
# 'a' // expected-error {{invalid preprocessing directive}}
# 42 'f' // expected-error {{invalid filename for line marker directive}}
# 42 1 3 // expected-error {{invalid filename for line marker directive}}
# 42 "foo" 3 1 // expected-error {{invalid flag line marker directive}}
# 42 "foo" 42 // expected-error {{invalid flag line marker directive}}
# 42 "foo" 1 2 // expected-error {{invalid flag line marker directive}}
# 42a33 // expected-error {{GNU line marker directive requires a simple digit sequence}}
// These are checked by the RUN line.
#line 92 "blonk.c"
#error ABC
#error DEF
// expected-error@-2 {{ABC}}
#line 150
// expected-error@-3 {{DEF}}
// Verify that linemarker diddling of the system header flag works.
# 192 "glomp.h" // not a system header.: expected-warning {{this style of line directive is a GNU extension}}
typedef int x; // expected-note {{previous definition is here}}
typedef int x; // expected-warning {{redefinition of typedef 'x' is a C11 feature}}
# 192 "glomp.h" 3 // System header.
typedef int y; // ok
typedef int y; // ok
typedef int q; // q is in system header.
#line 42 "blonk.h" // doesn't change system headerness.
typedef int z; // ok
typedef int z; // ok
# 97 // doesn't change system headerness.
typedef int z1; // ok
typedef int z1; // ok
# 42 "blonk.h" // DOES change system headerness.
typedef int w; // expected-note {{previous definition is here}}
typedef int w; // expected-warning {{redefinition of typedef 'w' is a C11 feature}}
typedef int q; // original definition in system header, should not diagnose.
// This should not produce an "extra tokens at end of #line directive" warning,
// because #line is allowed to contain expanded tokens.
#define EMPTY()
#line 2 "foo.c" EMPTY( )
#line 2 "foo.c" NONEMPTY( ) // expected-warning{{extra tokens at end of #line directive}}
// PR3940
#line 0xf // expected-error {{#line directive requires a simple digit sequence}}
#line 42U // expected-error {{#line directive requires a simple digit sequence}}
// Line markers are digit strings interpreted as decimal numbers, this is
// 10, not 8.
#line 010 // expected-warning {{#line directive interprets number as decimal, not octal}}
extern int array[__LINE__ == 10 ? 1:-1];
# 020 // expected-warning {{GNU line marker directive interprets number as decimal, not octal}} expected-warning {{this style of line directive is a GNU extension}}
extern int array_gnuline[__LINE__ == 20 ? 1:-1];
/* PR3917 */
#line 41
extern char array2[\
_\
_LINE__ == 42 ? 1: -1]; /* line marker is location of first _ */
# 51 // expected-warning {{this style of line directive is a GNU extension}}
extern char array2_gnuline[\
_\
_LINE__ == 52 ? 1: -1]; /* line marker is location of first _ */
#line 0 "line-directive.c" // expected-warning {{#line directive with zero argument is a GNU extension}}
undefined t; // expected-error {{unknown type name 'undefined'}}
# 115 "main" // expected-warning {{this style of line directive is a GNU extension}}
# 116 "enter-1" 1 // expected-warning {{this style of line directive is a GNU extension}}
# 117 "enter-2" 1 // expected-warning {{this style of line directive is a GNU extension}}
# 118 "" 2 // pop to enter-1: expected-warning {{this style of line directive is a GNU extension}}
#error ENTER1
// expected-error@-1{{ENTER1}}
# 121 "" 2 // pop to "main": expected-warning {{this style of line directive is a GNU extension}}
#error MAIN2
// expected-error@-1{{MAIN2}}
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