bit array in C++

[hondya]

The following piece of code compiles under C (gcc 3.4.2)

typedef struct {
unsigned int padding[16]:1;
unsigned int holes[16]:1;
} triangle_bitmap_t;

However I get the error "invalid member function declaration" when I
try to compile it with C++ compiler (g++ 3.4.2). Any idea what might I
be doing wrong.

[Ron Natalie]

hondya wrote:

The following piece of code compiles under C (gcc 3.4.2)

typedef struct {
unsigned int padding[16]:1;
unsigned int holes[16]:1;
} triangle_bitmap_t;

However I get the error "invalid member function declaration" when I
try to compile it with C++ compiler (g++ 3.4.2). Any idea what might I
be doing wrong.

The error is a bit obtuse, but there is no such thing as a bit array.
A bitfield identifier must either be applied directly to the identifier
name or be an unnamed one. You can't apply it to an array .

[hondya]

Is it a C++ limitation/bug? Because the same thing works in C.

[Neelesh Bodas]

hondya wrote:

Is it a C++ limitation/bug?

No, its a syntax error. Bitfields cannot be applied for arrays.

the same thing works in C.

C is not C++ and C++ is not C.

[Default User]

hondya wrote:

Is it a C++ limitation/bug? Because the same thing works in C.

It's illegal in C as well. If your C compiler allowed, then it is some
sort of extension.

Brian

--
Please quote enough of the previous message for context. To do so from
Google, click "show options" and use the Reply shown in the expanded
header.

[Paweł]

hondya wrote:

The following piece of code compiles under C (gcc 3.4.2)

gcc 3.4.5 reject this code with error: bit-field `...' has invalid type.