#include <stdlib.h>
#include "exodusII.h"
#include "exodusII_int.h"

Include dependency graph for ex_conv.c:

Data Structures
struct	file_item
Defines
#define	NC_FLOAT_WORDSIZE 4
#define	NC_DOUBLE_WORDSIZE 8
#define	FIND_FILE(ptr, id)
Functions
int	ex_conv_ini (int exoid, int comp_wordsize, int io_wordsize, int file_wordsize)
void	ex_conv_exit (int exoid)
nc_type	nc_flt_code (int exoid)
int	ex_comp_ws (int exoid)
Variables
struct file_item *	file_list = NULL

Detailed Description

this file contains code needed to support the various floating point word size combinations for computation and i/o that applications might want to use. See the netcdf documentation for more details on the floating point conversion capabilities.

netCDF supports two floating point word sizes for its files:

NC_FLOAT - 32 bit IEEE
NC_DOUBLE - 64 bit IEEE

Define Documentation

#define FIND_FILE	(	ptr,
		id
	)

Value:

{ ptr = file_list;                    \
                            while(ptr) {                        \
                              if( ptr->file_id == id ) break;   \
                              ptr = ptr->next;                  \
                            }                                   \
                          }

Referenced by ex_comp_ws(), and nc_flt_code().

#define NC_DOUBLE_WORDSIZE 8

#define NC_FLOAT_WORDSIZE 4

Referenced by ex_conv_ini().

Function Documentation

int ex_comp_ws ( int exoid )

ex_comp_ws() returns 4 (i.e. sizeof(float)) or 8 (i.e. sizeof(double)), depending on the value of floating point word size used to initialize the conversion facility for this file id (exoid).

Parameters:

exoid integer which uniquely identifies the file of interest.

References EX_BADFILEID, ex_err(), EX_FATAL, exerrval, FIND_FILE, MAX_ERR_LENGTH, and file_item::user_compute_wordsize.

Referenced by ex_get_all_times(), ex_get_attr(), ex_get_concat_sets(), ex_get_coord(), ex_get_coordinate_frames(), ex_get_glob_var_time(), ex_get_glob_vars(), ex_get_n_coord(), ex_get_n_nodal_var(), ex_get_n_one_attr(), ex_get_n_var(), ex_get_nodal_var(), ex_get_nodal_var_time(), ex_get_nodal_varid_var(), ex_get_one_attr(), ex_get_set_dist_fact(), ex_get_time(), ex_get_var(), ex_get_var_time(), ex_get_varid_var(), ex_put_attr(), ex_put_concat_sets(), ex_put_coord(), ex_put_coordinate_frames(), ex_put_n_coord(), ex_put_n_nodal_var(), ex_put_n_one_attr(), ex_put_n_var(), ex_put_nodal_var(), ex_put_nodal_varid_var(), ex_put_one_attr(), ex_put_partial_set_dist_fact(), ex_put_set_dist_fact(), ex_put_time(), ex_put_var(), and ex_put_varid_var().

void ex_conv_exit ( int exoid )

ex_conv_exit() takes the structure identified by "exoid" out of the linked list which describes the files that ex_conv_array() knows how to convert.

Note:: it is absolutely necessary for ex_conv_exit() to be called after ncclose(), if the parameter used as "exoid" is the id returned from an ncopen() or nccreate() call, as netCDF reuses file ids! the best place to do this is ex_close(), which is where I did it.

Parameters:

exoid integer which uniquely identifies the file of interest.

References EX_BADFILEID, ex_err(), EX_MSG, exerrval, file_item::file_id, file_list, MAX_ERR_LENGTH, file_item::next, and NULL.

Referenced by ex_close().

int ex_conv_ini	(	int	exoid,
		int *	comp_wordsize,
		int *	io_wordsize,
		int	file_wordsize
	)

ex_conv_ini() initializes the floating point conversion process.

Parameters:

exoid	an integer uniquely identifying the file of interest.
comp_wordsize	compute floating point word size in the user's code. a zero value indicates that the user is requesting the default float size for the machine. The appropriate value is chosen and returned in comp_wordsize, and used in subsequent conversions. a valid but inappropriate for this parameter cannot be detected.
io_wordsize	the desired floating point word size for a netCDF file. for an existing file, if this parameter doesn't match the word size of data already stored in the file, a fatal error is generated. a value of 0 for an existing file indicates that the word size of the file was not known a priori, so use whatever is in the file. a value of 0 for a new file means to use the default size, an NC_FLOAT (4 bytes). when a value of 0 is specified the actual value used is returned in io_wordsize.
file_wordsize	floating point word size in an existing netCDF file. a value of 0 should be passed in for a new netCDF file.

word size parameters are specified in bytes. valid values are 0, 4, and 8:

References ex_err(), EX_FATAL, EX_MSG, EX_NOERR, file_item::file_id, file_list, MAX_ERR_LENGTH, NC_FLOAT_WORDSIZE, file_item::netcdf_type_code, file_item::next, and file_item::user_compute_wordsize.

Referenced by ex_create_int(), and ex_open_int().

nc_type nc_flt_code ( int exoid )

Variable Documentation

struct file_item* file_list = NULL

Referenced by ex_conv_exit(), and ex_conv_ini().

Data Structures

Defines

Functions

Variables

Detailed Description

Define Documentation

Function Documentation

Variable Documentation