Keil forum Keil C does not support

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Keil C does not support

Jim King over 20 years ago

Keil C does not support this line:

typedef const UINT32 volatile xdata *PCVX32;

it just support this way

typedef const volatile UINT32 xdata *PCVX32;

but other ANSI C compilers support both.
Is it a bug or something else?

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0 Karl Hamsher over 20 years ago

No ANSI C compiler supports UINT32 or xdata. Those have to be either something you have defined as being meaningful to you, or something they have defined as a language extension (or some combination).
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0 Karl Hamsher over 20 years ago

No ANSI C compiler supports UINT32 or xdata. Those have to be either something you have defined as being meaningful to you, or something they have defined as a language extension (or some combination).
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0 Jim King over 20 years ago in reply to Karl Hamsher
The position of "volatile" is the aim.You can try

typedef const long volatile *PVLONG;
and

typedef const volatile long *PVLONG;
on Keil C and VC.
It is strange that it can both be compiled successfully on Keil C if I change the type "long" to "int".
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0 Jim King over 20 years ago in reply to Jim King

And if there is no "const", it's also OK.
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