Hello,
Could you post the actual function name, signature and description.
It may be better to write a small wrapper here but we can't know that
from just the signature. For example does this function malloc a
string and return the pointer, expect you to malloc enough space for a
string and pass -it- the pointer, return a static string pointer, do
you have to free the returned pointer ... etc. Also, char** seems
more appropriate so I'm confused.
As an example, let's say your function is returning a pointer to a
static string (into its argument) along with the return code. You
might be able to write a little wrapper which returns the string
directly, or #f if the return code was bad (or the pointer was null).
This is self-contained code:
#>!
char *wrap_bar(void) {
char *ptr;
if (bar(&ptr) != 0)
return NULL;
else
return ptr;
}
<#
#>
int bar(char **ptr) {
static char baz[] = "hello";
*ptr = (char *)baz;
return 0; // failure code
}
<#
Add ___discard to wrap_bar() if bar() expects you to free the string;
also it's just as easy to use foreign-lambda* for the wrapper.
On 7/5/07, Robin Lee Powell <[EMAIL PROTECTED]> wrote:
#>?
int bar(char *x);
<#
Which I'm handling like so:
(define-external vstring c-string "N/A")
(bar (location vstring))
Could I drop the (location ...) call by using ___out?
I guess it would just be:
(define vstring (bar))
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