I'm a bit lost. You say my RPG prototype should be 10A, not *string.
But your example showing RPG protype with *string.

I really prefer to do
typedef struct {
char value[10];
} logECD_STP3_piModuleName_T;

But I don't want to have to do below in c just to call a function:
memset(&piModuleName, ' ', sizeof(piModuleName));
memcpy(&piModuleName, "MYMODULE",8);

I want to do this, hence, I changed it to use *string

Clear as mud?

-----Original Message-----
[] On
Behalf Of Barbara Morris
Sent: Friday, June 13, 2008 11:20 AM
To: C400-L@xxxxxxxxxxxx
Subject: Re: [C400-L] Basic c question again - type casting

Lim Hock-Chai wrote:

The reason that I use typedef is because the moduleName and locationID

should actually be a fix 10 char long variables.

Then your RPG prototype should be 10A, not a pointer with

Your original typedefs were correct. Having char* typedefs, and then
secretly requiring the caller to set up blank-filled values doesn't seem
very friendly.

I think a better alternative would be to allow all your callers to pass
null-terminated strings, and have your procedure get the data in the
right form.

D proc pi
D libP * value options(*string)
D logMessageP * value options(*string)

D lib s 10a
D logMessage s 2048a varying
lib = %str(libparm);
logMessage = %str(logMessageP);

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