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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [g++.old-deja/] [g++.bugs/] [900322_01.C] - Rev 12
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// { dg-do assemble }
// g++ 1.37.1 bug 900322_01
// ** Old, obsolete commentary:
// **************************************************************************
// The ANSI C standard, in section 3.1.2.5 (first paragraph) differentiates
// types into three disjoint sets, i.e object types, function types, and
// incomplete types.
// Also in 3.1.2.5 (page 24) the standard says that the element type of
// an array type is an object type.
// Later in that same section the standard also notes that array types with
// unknown size are considered incomplete types (page 25). (Struct & union
// types which have only been "forward declared" are also incomplete types.)
// Some experts infer this to mean that it is not legal to specify or to
// construct an array *type* whose element type is an incomplete type.
// This interpretation suggests that the statements indicated below contain
// errors.
// g++ fails to flag all of the indicated statements with errors (even when
// the -pedantic option is used).
// **************************************************************************
// The above commentary is wrong. (jason 1998/11/13)
// In fact, the lines marked OK are well-formed; the prohibition is only
// against forming array types with multiple unknown bounds. This prohibition
// is found in 8.3.4 [dcl.array].
// It is also ill-formed to create an object of incomplete type.
// keywords: incomplete types, arrays, element types
extern int extern_two_d [] []; // { dg-error "" } invalid declaration
int tenative_two_d [] []; // { dg-error "" } caught by g++
static int static_two_d [] []; // { dg-error "" } caught by g++
int (*pointer_to_two_d)[][]; // { dg-error "" } invalid declaration
void function_0 (int arg [] []) { // { dg-error "" } invalid declaration
}
typedef int int_one_d_type [];
typedef int_one_d_type int_two_d_type[];// { dg-error "" } invalid declaration
struct s;
extern struct s extern_s_array [10]; // OK
struct s tenative_s_array [10]; // { dg-error "" } object with incomplete type
static struct s static_s_array [10]; // { dg-error "" } object with incomplete type
struct s (*pointer_to_s_array) []; // OK
void function_1 (struct s arg []) { // OK
}
typedef struct s s_type;
typedef s_type s_one_d_type [10]; // OK
int main () { return 0; }