diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/parm-forwdecl-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/parm-forwdecl-1.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/parm-forwdecl-1.c b/gcc/testsuite/gcc.dg/parm-forwdecl-1.c new file mode 100644 index 000000000..470636de9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/parm-forwdecl-1.c @@ -0,0 +1,26 @@ +/* Test GNU parameter forward declarations. */ +/* Origin: Joseph Myers <joseph@codesourcery.com> */ +/* { dg-do compile } */ +/* { dg-options "" } */ + +/* Valid uses. */ +int f1(int a; int a); +int f2(int a; int a) { return 0; } +int f3(int a; int a; int a); +int f4(int a; int a; int a) { return 0; } +int f5(int a; int (*x)[a], int a); +int f6(int a; int (*x)[a], int a) { return 0; } +int f7(int a; int (*x)[a]; int (*y)[x[1][2]], int (*x)[a], int a); +int f8(int a; int (*x)[a]; int (*y)[x[1][2]], int (*x)[a], int a) { return 0; } + +/* Strange uses accepted by GCC 4.0 but not by 3.4 and probably not + desirable to accept. */ +int g1(int a;); /* { dg-error "just a forward declaration" "no parms" { xfail *-*-* } } */ +int g2(int a; __attribute__((unused))); /* { dg-error "just a forward declaration" "no parms" { xfail *-*-* } } */ +int g3(int;); /* { dg-error "just a forward declaration" "no parms" { xfail *-*-* } } */ +int g4(int, long;); /* { dg-error "just a forward declaration" "no parms" { xfail *-*-* } } */ + +/* Invalid uses. */ +int h1(int a; int b); /* { dg-error "just a forward declaration" } */ +int h2(int; int b); /* { dg-error "just a forward declaration" } */ +int h3(int a; long a); /* { dg-error "conflicting types|previous definition|just a forward declaration" } */ |