derek.holloway
7502bf64a4
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31 lines
2.6 KiB
C
31 lines
2.6 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify=c11 -std=c11 -pedantic %s
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// RUN: %clang_cc1 -fsyntax-only -verify=c23 -std=c23 -Wpre-c23-compat %s
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// Check C99 6.8.5p3
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void b1 (void) { for (void (*f) (void);;); }
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void b2 (void) { for (void f (void);;); } /* c11-warning {{non-variable declaration in 'for' loop is a C23 extension}}
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c23-warning {{non-variable declaration in 'for' loop is incompatible with C standards before C23}} */
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void b3 (void) { for (static int f;f;); } /* c11-warning {{declaration of non-local variable in 'for' loop is a C23 extension}}
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c23-warning {{declaration of non-local variable in 'for' loop is incompatible with C standards before C23}} */
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void b4 (void) { for (typedef int f;;); } /* c11-warning {{non-variable declaration in 'for' loop is a C23 extension}}
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c23-warning {{non-variable declaration in 'for' loop is incompatible with C standards before C23}} */
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void b5 (void) { for (struct { int i; } s;s.i;); }
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void b6 (void) { for (enum { zero, ten = 10 } i = ten;i;); }
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void b7 (void) { for (struct s { int i; };;); } /* c11-warning {{non-variable declaration in 'for' loop is a C23 extension}}
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c23-warning {{non-variable declaration in 'for' loop is incompatible with C standards before C23}} */
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void b8 (void) { for (static struct { int i; } s;s.i;); } /* c11-warning {{declaration of non-local variable in 'for' loop is a C23 extension}}
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c23-warning {{declaration of non-local variable in 'for' loop is incompatible with C standards before C23}} */
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void b9 (void) { for (struct { int i; } (*s)(struct { int j; } o) = 0;s;); }
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void b10(void) { for (typedef struct { int i; } (*s)(struct { int j; });;); } /* c11-warning {{non-variable declaration in 'for' loop is a C23 extension}}
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c23-warning {{non-variable declaration in 'for' loop is incompatible with C standards before C23}} */
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#if __has_feature(c_thread_local)
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void b11 (void) { for (static _Thread_local struct { int i; } s;s.i;); } /* c11-warning {{declaration of non-local variable in 'for' loop is a C23 extension}}
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c23-warning {{declaration of non-local variable in 'for' loop is incompatible with C standards before C23}} */
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#endif
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void b12(void) {
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for(_Static_assert(1, "");;) {} /* okay, _Static_assert declares *no* identifiers */
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}
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