68 lines
3.6 KiB
C
68 lines
3.6 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify -Wreserved-identifier -Wno-visibility %s
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#define __oof foo__ // expected-warning {{macro name is a reserved identifier}}
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int foo__bar() { return 0; } // no-warning
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static int _bar() { return 0; } // expected-warning {{identifier '_bar' is reserved because it starts with '_' at global scope}}
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static int _Bar() { return 0; } // expected-warning {{identifier '_Bar' is reserved because it starts with '_' followed by a capital letter}}
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int _foo() { return 0; } // expected-warning {{identifier '_foo' is reserved because it starts with '_' at global scope}}
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// This one is explicitly skipped by -Wreserved-identifier
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void *_; // no-warning
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void foo(unsigned int _Reserved) { // expected-warning {{identifier '_Reserved' is reserved because it starts with '_' followed by a capital letter}}
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unsigned int __1 = // expected-warning {{identifier '__1' is reserved because it starts with '__'}}
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_Reserved; // no-warning
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goto __reserved; // expected-warning {{identifier '__reserved' is reserved because it starts with '__'}}
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__reserved: // expected-warning {{identifier '__reserved' is reserved because it starts with '__'}}
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;
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goto _not_reserved;
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_not_reserved: ;
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}
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void foot(unsigned int _not_reserved) {} // no-warning
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enum __menu { // expected-warning {{identifier '__menu' is reserved because it starts with '__'}}
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__some, // expected-warning {{identifier '__some' is reserved because it starts with '__'}}
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_Other, // expected-warning {{identifier '_Other' is reserved because it starts with '_' followed by a capital letter}}
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_other // expected-warning {{identifier '_other' is reserved because it starts with '_' at global scope}}
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};
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struct __babar { // expected-warning {{identifier '__babar' is reserved because it starts with '__'}}
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};
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struct _Zebulon; // expected-warning {{identifier '_Zebulon' is reserved because it starts with '_' followed by a capital letter}}
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struct _Zebulon2 { // expected-warning {{identifier '_Zebulon2' is reserved because it starts with '_' followed by a capital letter}}
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} * p;
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struct _Zebulon3 *pp; // expected-warning {{identifier '_Zebulon3' is reserved because it starts with '_' followed by a capital letter}}
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typedef struct {
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int _Field; // expected-warning {{identifier '_Field' is reserved because it starts with '_' followed by a capital letter}}
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int _field; // no-warning
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} _Typedef; // expected-warning {{identifier '_Typedef' is reserved because it starts with '_' followed by a capital letter}}
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int foobar() {
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return foo__bar(); // no-warning
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}
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struct _reserved { // expected-warning {{identifier '_reserved' is reserved because it starts with '_' at global scope}}
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int a;
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} cunf(void) {
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return (struct _reserved){1};
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}
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// FIXME: According to clang declaration context layering, _preserved belongs to
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// the translation unit, so we emit a warning. It's unclear that's what the
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// standard mandate, but it's such a corner case we can live with it.
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void func(struct _preserved { int a; } r) {} // expected-warning {{identifier '_preserved' is reserved because it starts with '_' at global scope}}
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extern char *_strdup(const char *); // expected-warning {{identifier '_strdup' is reserved because it starts with '_' at global scope}}
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// Don't warn on redecleration
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extern char *_strdup(const char *); // no-warning
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void ok() {
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void _ko(); // expected-warning {{identifier '_ko' is reserved because it starts with '_' at global scope}}
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extern int _ko_again; // expected-warning {{identifier '_ko_again' is reserved because it starts with '_' at global scope}}
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}
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