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[Chicken-users] Including C struct definitions
From: |
Nicolas Pelletier |
Subject: |
[Chicken-users] Including C struct definitions |
Date: |
20 Dec 2004 11:41:10 +0100 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 |
Hello,
I am using Chicken 1.72 and would like to embed C structs in Scheme
code. Some fields in these structures are themselves structued types,
and csc gives an error on such structures. Here is what my code looks
like:
my_structs.scm:
#>!
#include "my_structs.h"
<#
my_structs.h:
typedef struct
{
unsigned char a;
unsigned char b;
} a_t;
typedef struct
{
a_t c;
unsigned long int d;
} b_t;
csc gives the following error:
csc my_struct.scm -output-file my_struct.c
Error: invalid type specifier: (struct (scope (unsigned char (id "a"))
(unsigned char (id "b"))))
*** Shell command terminated with exit status 1:
/home/nicolasp/SunOS/chicken/bin/chicken struct.scm -output-file struct.c
-quiet -output-file struct.c
I tried the following trick without success:
struct a_s
{
unsigned char a;
unsigned char b;
};
typedef struct a_s a_t;
struct b_s
{
struct a_s c;
unsigned long int d;
};
typedef struct b_s b_t;
This one chokes on the definition of the field called d.
Is there a way to make this kind of structured types work ?
Thanks in advanve !
--
Nicolas
- [Chicken-users] Including C struct definitions,
Nicolas Pelletier <=