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Array with Fully-Bracketed Initializers

Following on from this discussion:
http://www.8052.com/forum/read.phtml?id=84814

Keil C51 v7.50 rejects the following:

char key_tbl[][] =
{
    {   4,   3,   2,   1 },    // row 0
    {   8,   7,   6,   5 },    // row 1
    {  12,  11,  10,   9 },    // row 2
    {  16,  15,  14,  13 },    // row 3
};

It says:

MAIN.C(27): error C163: 'key_tbl': unknown array size

Since this is a Fully-Bracketed Initializer, shouldn't the compiler be able to deduce the size?

The description of this message in the online help doesn't mention this situation:

"In general, a formal size specifier is not required for external, single, or multi-dimensional arrays. Typically, the compiler calculates the size at initialization time. For external arrays, the size is of no great interest. This error is the result of attempting to use the sizeof operator on an undimensioned array or on a multi-dimensional array with undefined element sizes."

Parents

0 HansBernhard Broeker over 20 years ago in reply to Frodak Baksik

I've always assumed ANSI-83 ( 83 is the 1st one isn't it?

No, it's C89 (ANSI) a.k.a. C90 (ISO edition of same). There was no earlier edition. Before ANSI C89, there was no formal standard definition of C, so the book written by the makers of C served that purpose.
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0 HansBernhard Broeker over 20 years ago in reply to Frodak Baksik

I've always assumed ANSI-83 ( 83 is the 1st one isn't it?

No, it's C89 (ANSI) a.k.a. C90 (ISO edition of same). There was no earlier edition. Before ANSI C89, there was no formal standard definition of C, so the book written by the makers of C served that purpose.
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