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git.ipfire.org Git - thirdparty/gcc.git/blob - gcc/testsuite/gcc.dg/redecl-4.c
1 /* Test for multiple declarations and composite types, with built-in
3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
4 /* { dg-do compile } */
5 /* { dg-options "-std=c89 -Wformat -g" } */
13 int printf (const char *, ...);
15 /* Should get format warnings even though the built-in declaration
18 "%s", 1); /* { dg-warning "15:format" } */
19 /* The type of strcmp here should have no prototype. */
22 /* Likewise, implicitly declared memcmp. */
28 /* Should still diagnose incompatible prototype for strcmp. */
29 int strcmp (void); /* { dg-error "conflict" } */
31 /* { dg-prune-output "\\\[-Wbuiltin-declaration-mismatch]" }
32 { dg-prune-output "\\\[-Wint-conversion]" } */