handling Struct and global function for C module

[Anish Chapagain]

Hi,
I have Structure in C, program and the structure is being used with
various function inside C coding but am getting undefined referenced
to global method and few of them too uses the sturct module.
my problem goes like this,

ex.h
-----------
#define NIL 0 /* Indicates ptr is nil */
#define NO_CODER 0 /* Means do not use an arithmetic
coder */
#define DEFAULT_CODER 1 /* Default arithmetic coder */
#define FALSE 0 /* For boolean expressions */
#define TRUE 1 /* For boolean expressions */

typedef unsigned int boolean;
extern unsigned int debugModel;

typedef struct debugType
{
unsigned int level;
unsigned int level1;
unsigned int progress;
unsigned int range;
unsigned int coder;
unsigned int coder_target;
unsigned int codelengths;
}debugType;
extern struct debugType Debug;

//main function for .c file
void usage(void);
void loadModels(FILE *fp);
void init_arguments( int argc, char *argv[]);
unsigned int *getText (FILE *fp, unsigned int eoln, unsigned int
del_last_eoln, unsigned int *len);
float codelengthText (unsigned int model, unsigned int *text, unsigned
int textlen);
void codelengthModel s (unsigned int *text, unsigned int textlen);

//gloabal function for .c file running with local function
extern unsigned int TLM_create_cont ext (unsigned int model);
extern void TLM_set_context _operation (unsigned int
context_operati on);
extern void TLM_update_cont ext (unsigned int model, unsigned int
context, unsigned int symbol);
extern void TLM_release_con text (unsigned int model, unsigned int
context);
extern void TLM_dump_models (unsigned int file, void
(*dump_symbol_f unction) (unsigned int, unsigned int));
extern void TLM_set_tag (unsigned int model, char *tag);
---------------------------------------------------------------------
ex.c
--------
#include "ex.h"
int Exclude_eolns = 0; /* For incuding/excluding eolns in the input
*/
int Delete_last_eol n = 0; /* For deleting the last eoln read in from
the input */
int Debug_model = 0; /* For dumping out the model */
int Debug_chars = 0; /* For dumping out the codelength character
by character */
int Display_entropy = 0; /* For displaying cross-entropies and not
codelengths */

unsigned int TLM_Coderanges;
float TLM_Codelength;
unsigned int TLM_Context_Ope ration;


void loadModels (FILE * fp)
/* Load the models from file FP. */
{
char tag [MAX_TAG], filename [MAX_FILENAME];
//char tag [256], filename [256];

unsigned int model;

while ((fscanf (fp, "%s %s", tag, filename) != EOF))
{
model = TLM_read_model( filename, "Loading model from file",
"Codelength : can't open model file");
TLM_set_tag (model, tag);
}
}

void init_arguments (int argc, char *argv[])
{
char *optarg; //extern char *optarg;
int optind; //extern int optind;
FILE *fp;
unsigned int models_found;
int opt;

/* get the argument options */

models_found = 0;
Exclude_eolns = 0;
Delete_last_eol n = 1;
while ((opt = getopt (argc, argv, "ELcd:em:r" )) != -1)
switch (opt)
{
case 'E':
Exclude_eolns = 1;
break;
case 'L':
Delete_last_eol n = 1;
break;
case 'c':
Debug_chars = 1;
break;
case 'd':
Debug_model = atoi (optarg);
break;
case 'e':
Display_entropy = 1;
break;
case 'm':
fprintf (stderr, "Loading models from file %s\n",
optarg);
if ((fp = fopen (optarg, "r")) == NULL)
{
fprintf (stderr, "Encode: can't open models file %s\n",
optarg);
exit (1);
}
loadModels (fp);
models_found = 1;
break;
case 'r':
Debug.range = 1; //uses structure element range.
break;
default:
usage ();
break;
}
if (!models_found)
{
fprintf (stderr, "\nFatal error: missing models\n\n");
usage ();
}
for (; optind < argc; optind++)
usage ();
}
----------------------------------------------------------------------------------------------------------------------------------

but while running setup.py build with distutils it's showing error as

_ex.o: In function 'init_arguments ':
_ex.c :89: undefined reference to _TLM_read_model
_ex.c :95: undefined reference to _TLM_set_tag

for all the global function declared within .h file and the calling
method from .c file,
also how can the Debug.range can be used...

thank's
anish

[Fredrik Lundh]

Re: handling Struct and global function for C module

Anish Chapagain wrote:

but while running setup.py build with distutils it's showing error as
>
_ex.o: In function 'init_arguments ':
_ex.c :89: undefined reference to _TLM_read_model
_ex.c :95: undefined reference to _TLM_set_tag
>
for all the global function declared within .h file and the calling
method from .c file,

your code doesn't match the error messages, and doesn't seem to be a
Python extension at all. are you sure you posted this to the right
newsgroup?

</F>

[Anish Chapagain]

Re: handling Struct and global function for C module

On Aug 18, 8:43 pm, Fredrik Lundh <fred...@python ware.comwrote:

Anish Chapagain wrote:

but while running setup.py build with distutils it's showing error as

>

_ex.o: In function 'init_arguments ':
     _ex.c :89: undefined reference to _TLM_read_model
     _ex.c :95:  undefined reference to _TLM_set_tag

>

for all the global function declared within .h file and the calling
method from .c file,

>
your code doesn't match the error messages, and doesn't seem to be a
Python extension at all.  are you sure you posted this to the right
newsgroup?
>
</F>

hi,
i am thinking now that may be it;s realted to the cygwin package that
i'm using with python in win XP, but still mine .c file has structure
element and structure is in .h file so how can i pass on value to
structure element,
it shows as ex_debugType_ge t(), ex_debugType_se t()...can i assign
value to member creating own function..want some help for this...

thank's