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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [c1x-noreturn-1.c] - Rev 749
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/* Test C1X _Noreturn. Test valid code. */ /* { dg-do compile } */ /* { dg-options "-std=c1x -pedantic-errors" } */ _Noreturn void exit (int); _Noreturn int f1 (void); _Noreturn void f2 (void); static void _Noreturn f3 (void) { exit (0); } /* Returning from a noreturn function is undefined at runtime, not a constraint violation, but recommended practice is to diagnose if such a return appears possible. */ _Noreturn int f4 (void) { return 1; /* { dg-warning "has a 'return' statement" } */ /* { dg-warning "does return" "second warning" { target *-*-* } 20 } */ } _Noreturn void f5 (void) { return; /* { dg-warning "has a 'return' statement" } */ /* { dg-warning "does return" "second warning" { target *-*-* } 27 } */ } _Noreturn void f6 (void) { } /* { dg-warning "does return" } */ _Noreturn void f7 (int a) { if (a) exit (0); } /* { dg-warning "does return" } */ /* Declarations need not all have _Noreturn. */ void f2 (void); void f8 (void); _Noreturn void f8 (void); /* Duplicate _Noreturn is OK. */ _Noreturn _Noreturn void _Noreturn f9 (void); /* _Noreturn does not affect type compatibility. */ void (*fp) (void) = f5; /* noreturn is an ordinary identifier. */ int noreturn;
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