epr_api.h File Reference

#include <stdio.h>
#include "epr_ptrarray.h"

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Classes
struct	EPR_SProductId
struct	EPR_SDatasetId
struct	EPR_SDSD
struct	EPR_SRecord
struct	EPR_SField
struct	EPR_SRaster
struct	EPR_SDatasetRef
struct	EPR_SFlagDef
struct	EPR_SBandId
struct	EPR_STime

Macros
#define	EPR_PRODUCT_API_NAME_STR   "ENVISAT Product Reader API"
#define	EPR_PRODUCT_API_VERSION_STR   "2.3"
#define	EPR_MAGIC_PRODUCT_ID   0xCAFFEE64
#define	EPR_MAGIC_DATASET_ID   0xEFEABDCA
#define	EPR_MAGIC_BAND_ID   0xFEC21ABD
#define	EPR_MAGIC_RECORD   0x7BABACAE
#define	EPR_MAGIC_FIELD   0xBA0BABBA
#define	EPR_MAGIC_RASTER   0x0BABA0EB
#define	EPR_MAGIC_FLAG_DEF   0xCABA11AD
#define	EPR_TRUE   1
#define	EPR_FALSE   0
#define	EPR_PRODUCT_ID_STRLEN   48

Typedefs
typedef enum EPR_DataTypeId	EPR_EDataTypeId
typedef enum EPR_ErrCode	EPR_EErrCode
typedef enum EPR_LogLevel	EPR_ELogLevel
typedef enum EPR_SampleModel	EPR_ESampleModel
typedef enum EPR_ScalingMethod	EPR_EScalingMethod
typedef struct EPR_BitmaskTerm	EPR_SBitmaskTerm
typedef struct EPR_FlagSet	EPR_SFlagSet
typedef void(*	EPR_FErrHandler) (EPR_EErrCode err_code, const char *err_message)
typedef void(*	EPR_FLogHandler) (EPR_ELogLevel log_level, const char *log_message)
typedef int	epr_boolean
typedef unsigned char	epr_uchar
typedef unsigned short	epr_ushort
typedef unsigned int	epr_uint
typedef unsigned long	epr_ulong
typedef int	EPR_Magic

Enumerations
enum	EPR_DataTypeId {   e_tid_unknown = 0, e_tid_uchar = 1, e_tid_char = 2, e_tid_ushort = 3,   e_tid_short = 4, e_tid_uint = 5, e_tid_int = 6, e_tid_float = 7,   e_tid_double = 8, e_tid_string = 11, e_tid_spare = 13, e_tid_time = 21 }
enum	EPR_ErrCode {   e_err_none = 0, e_err_null_pointer = 1, e_err_illegal_arg = 2, e_err_illegal_state = 3,   e_err_out_of_memory = 4, e_err_index_out_of_range = 5, e_err_illegal_conversion = 6, e_err_illegal_data_type = 7,   e_err_file_not_found = 101, e_err_file_access_denied = 102, e_err_file_read_error = 103, e_err_file_write_error = 104,   e_err_file_open_failed = 105, e_err_file_close_failed = 106, e_err_api_not_initialized = 201, e_err_invalid_product_id = 203,   e_err_invalid_record = 204, e_err_invalid_band = 205, e_err_invalid_raster = 206, e_err_invalid_dataset_name = 207,   e_err_invalid_field_name = 208, e_err_invalid_record_name = 209, e_err_invalid_product_name = 210, e_err_invalid_band_name = 211,   e_err_invalid_data_format = 212, e_err_invalid_value = 213, e_err_invalid_keyword_name = 214, e_err_unknown_endian_order = 216,   e_err_flag_not_found = 301, e_err_invalid_ddbb_format = 402 }
enum	EPR_LogLevel { e_log_debug = -1, e_log_info = 0, e_log_warning = 1, e_log_error = 2 }
enum	EPR_SampleModel {   e_smod_1OF1 = 0, e_smod_1OF2 = 1, e_smod_2OF2 = 2, e_smod_3TOI = 3,   e_smod_2TOF = 4 }
enum	EPR_ScalingMethod { e_smid_non = 0, e_smid_lin = 1, e_smid_log = 2 }

Functions
int	epr_init_api (EPR_ELogLevel log_level, EPR_FLogHandler log_handler, EPR_FErrHandler err_handler)
void	epr_close_api ()
int	epr_set_log_level (EPR_ELogLevel log_level)
void	epr_set_log_handler (EPR_FLogHandler log_handler)
void	epr_log_message (EPR_ELogLevel log_level, const char *log_message)
void	epr_set_err_handler (EPR_FErrHandler err_handler)
EPR_EErrCode	epr_get_last_err_code ()
const char *	epr_get_last_err_message ()
void	epr_clear_err ()
EPR_SProductId *	epr_open_product (const char *product_file_path)
int	epr_close_product (EPR_SProductId *product_id)
void	epr_print_record (const EPR_SRecord *record, FILE *ostream)
void	epr_print_field (const EPR_SField *field, FILE *ostream)
void	epr_print_element (const EPR_SRecord *record, epr_uint field_index, epr_uint element_index, FILE *ostream)
void	epr_dump_record (const EPR_SRecord *record)
void	epr_dump_field (const EPR_SField *field)
void	epr_dump_element (const EPR_SRecord *record, epr_uint field_index, epr_uint element_index)
epr_uint	epr_get_scene_width (const EPR_SProductId *product_id)
epr_uint	epr_get_scene_height (const EPR_SProductId *product_id)
epr_uint	epr_get_num_datasets (EPR_SProductId *product_id)
EPR_SDatasetId *	epr_get_dataset_id_at (EPR_SProductId *product_id, epr_uint index)
EPR_SDatasetId *	epr_get_dataset_id (EPR_SProductId *product_id, const char *dataset_name)
const char *	epr_get_dataset_name (EPR_SDatasetId *dataset_id)
const char *	epr_get_dsd_name (const EPR_SDatasetId *dataset_id)
EPR_SRecord *	epr_get_mph (const EPR_SProductId *product_id)
EPR_SRecord *	epr_get_sph (const EPR_SProductId *product_id)
const EPR_SDSD *	epr_get_dsd (const EPR_SDatasetId *dataset_id)
epr_uint	epr_get_num_records (const EPR_SDatasetId *dataset_id)
epr_uint	epr_get_num_dsds (const EPR_SProductId *product_id)
EPR_SDSD *	epr_get_dsd_at (const EPR_SProductId *product_id, epr_uint dsd_index)
EPR_SRecord *	epr_create_record (EPR_SDatasetId *dataset_id)
EPR_SRecord *	epr_read_record (EPR_SDatasetId *dataset_id, epr_uint record_index, EPR_SRecord *record)
void	epr_free_record (EPR_SRecord *record)
const EPR_SField *	epr_get_field (const EPR_SRecord *record, const char *field_name)
epr_uint	epr_get_num_fields (const EPR_SRecord *record)
const EPR_SField *	epr_get_field_at (const EPR_SRecord *record, epr_uint field_index)
const char *	epr_get_field_unit (const EPR_SField *field)
const char *	epr_get_field_description (const EPR_SField *field)
epr_uint	epr_get_field_num_elems (const EPR_SField *field)
const char *	epr_get_field_name (const EPR_SField *field)
EPR_EDataTypeId	epr_get_field_type (const EPR_SField *field)
char	epr_get_field_elem_as_char (const EPR_SField *field, epr_uint elem_index)
epr_uchar	epr_get_field_elem_as_uchar (const EPR_SField *field, epr_uint elem_index)
short	epr_get_field_elem_as_short (const EPR_SField *field, epr_uint elem_index)
epr_ushort	epr_get_field_elem_as_ushort (const EPR_SField *field, epr_uint elem_index)
int	epr_get_field_elem_as_int (const EPR_SField *field, epr_uint elem_index)
epr_uint	epr_get_field_elem_as_uint (const EPR_SField *field, epr_uint elem_index)
float	epr_get_field_elem_as_float (const EPR_SField *field, epr_uint elem_index)
double	epr_get_field_elem_as_double (const EPR_SField *field, epr_uint elem_index)
const EPR_STime *	epr_get_field_elem_as_mjd (const EPR_SField *field)
const char *	epr_get_field_elem_as_str (const EPR_SField *field)
const char *	epr_get_field_elems_char (const EPR_SField *field)
const epr_uchar *	epr_get_field_elems_uchar (const EPR_SField *field)
const short *	epr_get_field_elems_short (const EPR_SField *field)
const epr_ushort *	epr_get_field_elems_ushort (const EPR_SField *field)
const int *	epr_get_field_elems_int (const EPR_SField *field)
const epr_uint *	epr_get_field_elems_uint (const EPR_SField *field)
const float *	epr_get_field_elems_float (const EPR_SField *field)
const double *	epr_get_field_elems_double (const EPR_SField *field)
epr_uint	epr_copy_field_elems_as_ints (const EPR_SField *field, int *buffer, epr_uint num_elems)
epr_uint	epr_copy_field_elems_as_uints (const EPR_SField *field, epr_uint *buffer, epr_uint num_elems)
epr_uint	epr_copy_field_elems_as_floats (const EPR_SField *field, float *buffer, epr_uint num_elems)
epr_uint	epr_copy_field_elems_as_doubles (const EPR_SField *field, double *buffer, epr_uint num_elems)
EPR_SRaster *	epr_create_compatible_raster (EPR_SBandId *band_id, epr_uint source_width, epr_uint source_height, epr_uint source_step_x, epr_uint source_step_y)
EPR_SRaster *	epr_create_raster (EPR_EDataTypeId data_type, epr_uint source_width, epr_uint source_height, epr_uint source_step_x, epr_uint source_step_y)
EPR_SRaster *	epr_create_bitmask_raster (epr_uint source_width, epr_uint source_height, epr_uint source_step_x, epr_uint source_step_y)
int	epr_read_band_raster (EPR_SBandId *band_id, int offset_x, int offset_y, EPR_SRaster *raster)
epr_uint	epr_get_raster_elem_size (const EPR_SRaster *raster)
void *	epr_get_raster_elem_addr (const EPR_SRaster *raster, epr_uint offset)
void *	epr_get_raster_pixel_addr (const EPR_SRaster *raster, epr_uint x, epr_uint y)
void *	epr_get_raster_line_addr (const EPR_SRaster *raster, epr_uint y)
epr_uint	epr_get_raster_width (EPR_SRaster *raster)
epr_uint	epr_get_raster_height (EPR_SRaster *raster)
epr_uint	epr_get_num_bands (EPR_SProductId *product_id)
EPR_SBandId *	epr_get_band_id_at (EPR_SProductId *product_id, epr_uint index)
EPR_SBandId *	epr_get_band_id (EPR_SProductId *product_id, const char *band_name)
const char *	epr_get_band_name (EPR_SBandId *band_id)
void	epr_free_raster (EPR_SRaster *raster)
epr_uint	epr_get_pixel_as_uint (const EPR_SRaster *raster, int x, int y)
int	epr_get_pixel_as_int (const EPR_SRaster *raster, int x, int y)
float	epr_get_pixel_as_float (const EPR_SRaster *raster, int x, int y)
double	epr_get_pixel_as_double (const EPR_SRaster *raster, int x, int y)
int	epr_read_bitmask_raster (EPR_SProductId *product_id, const char *bm_expr, int offset_x, int offset_y, EPR_SRaster *raster)
epr_uint	epr_get_data_type_size (EPR_EDataTypeId data_type_id)
const char *	epr_data_type_id_to_str (EPR_EDataTypeId data_type_id)

Macro Definition Documentation

EPR_FALSE

#define EPR_FALSE   0

Definition at line 203 of file epr_api.h.

EPR_MAGIC_BAND_ID

#define EPR_MAGIC_BAND_ID   0xFEC21ABD

Definition at line 196 of file epr_api.h.

EPR_MAGIC_DATASET_ID

#define EPR_MAGIC_DATASET_ID   0xEFEABDCA

Definition at line 195 of file epr_api.h.

EPR_MAGIC_FIELD

#define EPR_MAGIC_FIELD   0xBA0BABBA

Definition at line 198 of file epr_api.h.

EPR_MAGIC_FLAG_DEF

#define EPR_MAGIC_FLAG_DEF   0xCABA11AD

Definition at line 200 of file epr_api.h.

EPR_MAGIC_PRODUCT_ID

#define EPR_MAGIC_PRODUCT_ID   0xCAFFEE64

Definition at line 194 of file epr_api.h.

EPR_MAGIC_RASTER

#define EPR_MAGIC_RASTER   0x0BABA0EB

Definition at line 199 of file epr_api.h.

EPR_MAGIC_RECORD

#define EPR_MAGIC_RECORD   0x7BABACAE

Definition at line 197 of file epr_api.h.

EPR_PRODUCT_API_NAME_STR

#define EPR_PRODUCT_API_NAME_STR   "ENVISAT Product Reader API"

Definition at line 32 of file epr_api.h.

EPR_PRODUCT_API_VERSION_STR

#define EPR_PRODUCT_API_VERSION_STR   "2.3"

Definition at line 33 of file epr_api.h.

EPR_PRODUCT_ID_STRLEN

#define EPR_PRODUCT_ID_STRLEN   48

Definition at line 205 of file epr_api.h.

EPR_TRUE

#define EPR_TRUE   1

Definition at line 202 of file epr_api.h.

Typedef Documentation

epr_boolean

typedef int epr_boolean

Definition at line 185 of file epr_api.h.

EPR_EDataTypeId

typedef enum EPR_DataTypeId EPR_EDataTypeId

Definition at line 161 of file epr_api.h.

EPR_EErrCode

typedef enum EPR_ErrCode EPR_EErrCode

Definition at line 162 of file epr_api.h.

EPR_ELogLevel

typedef enum EPR_LogLevel EPR_ELogLevel

Definition at line 163 of file epr_api.h.

EPR_ESampleModel

typedef enum EPR_SampleModel EPR_ESampleModel

Definition at line 164 of file epr_api.h.

EPR_EScalingMethod

typedef enum EPR_ScalingMethod EPR_EScalingMethod

Definition at line 165 of file epr_api.h.

EPR_FErrHandler

typedef void(* EPR_FErrHandler) (EPR_EErrCode err_code, const char *err_message)

Definition at line 181 of file epr_api.h.

EPR_FLogHandler

typedef void(* EPR_FLogHandler) (EPR_ELogLevel log_level, const char *log_message)

Definition at line 182 of file epr_api.h.

EPR_Magic

typedef int EPR_Magic

Definition at line 192 of file epr_api.h.

EPR_SBitmaskTerm

typedef struct EPR_BitmaskTerm EPR_SBitmaskTerm

Definition at line 179 of file epr_api.h.

EPR_SFlagSet

typedef struct EPR_FlagSet EPR_SFlagSet

Definition at line 180 of file epr_api.h.

epr_uchar

typedef unsigned char epr_uchar

Definition at line 186 of file epr_api.h.

epr_uint

typedef unsigned int epr_uint

Definition at line 188 of file epr_api.h.

epr_ulong

typedef unsigned long epr_ulong

Definition at line 189 of file epr_api.h.

epr_ushort

typedef unsigned short epr_ushort

Definition at line 187 of file epr_api.h.

Enumeration Type Documentation

EPR_DataTypeId

enum EPR_DataTypeId

The EPR_DataTypeId enumeration lists all possible data types for field elements in ENVISAT dataset records.

Enumerator
e_tid_unknown	The ID for unknown types.
e_tid_uchar	An array of unsigned 8-bit integers, C type is uchar*
e_tid_char	An array of signed 8-bit integers, C type is char*
e_tid_ushort	An array of unsigned 16-bit integers, C type is ushort*
e_tid_short	An array of signed 16-bit integers, C type is short*
e_tid_uint	An array of unsigned 32-bit integers, C type is uint*
e_tid_int	An array of signed 32-bit integers, C type is int*
e_tid_float	An array of 32-bit floating point numbers, C type is float*
e_tid_double	An array of 64-bit floating point numbers, C type is double*
e_tid_string	A zero-terminated ASCII string, C type is char*
e_tid_spare	An array of unsigned character, C type is uchar*
e_tid_time	A time (MJD) structure, C type is EPR_Time

Definition at line 44 of file epr_api.h.

EPR_ErrCode

enum EPR_ErrCode

The EPR_ErrCode enumeration lists all possible error codes for the ENVISAT product reader API.

Enumerator
e_err_none
e_err_null_pointer
e_err_illegal_arg
e_err_illegal_state
e_err_out_of_memory
e_err_index_out_of_range
e_err_illegal_conversion
e_err_illegal_data_type
e_err_file_not_found
e_err_file_access_denied
e_err_file_read_error
e_err_file_write_error
e_err_file_open_failed
e_err_file_close_failed
e_err_api_not_initialized
e_err_invalid_product_id
e_err_invalid_record
e_err_invalid_band
e_err_invalid_raster
e_err_invalid_dataset_name
e_err_invalid_field_name
e_err_invalid_record_name
e_err_invalid_product_name
e_err_invalid_band_name
e_err_invalid_data_format
e_err_invalid_value
e_err_invalid_keyword_name
e_err_unknown_endian_order
e_err_flag_not_found
e_err_invalid_ddbb_format

Definition at line 75 of file epr_api.h.

EPR_LogLevel

enum EPR_LogLevel

The EPR_LogLevel enumeration lists possible log levels for the ENVISAT product reader API.

Enumerator
e_log_debug
e_log_info
e_log_warning
e_log_error

Definition at line 124 of file epr_api.h.

EPR_SampleModel

enum EPR_SampleModel

Enumerator
e_smod_1OF1
e_smod_1OF2
e_smod_2OF2
e_smod_3TOI
e_smod_2TOF

Definition at line 131 of file epr_api.h.

EPR_ScalingMethod

enum EPR_ScalingMethod

Enumerator
e_smid_non
e_smid_lin
e_smid_log

Definition at line 139 of file epr_api.h.

Function Documentation

epr_copy_field_elems_as_doubles()

epr_uint epr_copy_field_elems_as_doubles	(	const EPR_SField *	field,
		double *	buffer,
		epr_uint	num_elems
	)

Copies the data of the given field into the given buffer of double elements. The actual number of elements copied is the minimum of the given number of elements (the buffer's size) and the actual number of elements contained in the field.

If the actual field data type is not double the function automatically performs the conversion.

Parameters

field	the field from which to copy the elements
buffer	the buffer in which to copy the data
num_elems	the number of elements in the given buffer

Returns

the actual number of elements copied

Definition at line 657 of file epr_typconv.c.

epr_copy_field_elems_as_floats()

epr_uint epr_copy_field_elems_as_floats	(	const EPR_SField *	field,
		float *	buffer,
		epr_uint	num_elems
	)

Copies the data of the given field into the given buffer of float elements. The actual number of elements copied is the minimum of the given number of elements (the buffer's size) and the actual number of elements contained in the field.

If the actual field data type is not float the function automatically performs the conversion.

Parameters

field	the field from which to copy the elements
buffer	the buffer in which to copy the data
num_elems	the number of elements in the given buffer

Returns

the actual number of elements copied

Definition at line 729 of file epr_typconv.c.

epr_copy_field_elems_as_ints()

epr_uint epr_copy_field_elems_as_ints	(	const EPR_SField *	field,
		int *	buffer,
		epr_uint	num_elems
	)

epr_copy_field_elems_as_uints()

epr_uint epr_copy_field_elems_as_uints	(	const EPR_SField *	field,
		epr_uint *	buffer,
		epr_uint	num_elems
	)

Copies the data of the given field into the given buffer of uint elements. The actual number of elements copied is the minimum of the given number of elements (the buffer's size) and the actual number of elements contained in the field.

If the actual field data type is not uint the function automatically performs the conversion.

Parameters

field	the field from which to copy the elements
buffer	the buffer in which to copy the data
num_elems	the number of elements in the given buffer

Returns

the actual number of elements copied

Definition at line 857 of file epr_typconv.c.

epr_get_field_elem_as_char()

char epr_get_field_elem_as_char	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a char value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the char typed element or error_code if an error occured.

Definition at line 41 of file epr_typconv.c.

epr_get_field_elem_as_double()

double epr_get_field_elem_as_double	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a double value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the double typed element or error_code if an error occured.

Definition at line 514 of file epr_typconv.c.

epr_get_field_elem_as_float()

float epr_get_field_elem_as_float	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a float value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the float typed element or error_code if an error occured.

Definition at line 435 of file epr_typconv.c.

epr_get_field_elem_as_int()

int epr_get_field_elem_as_int	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a int value.

If an error occurs the method returns 0 (zero). Whether an error really occured when zero is returned can by determined by using the epr_get_last_err_code function.

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

a int value

Definition at line 291 of file epr_typconv.c.

epr_get_field_elem_as_mjd()

const EPR_STime* epr_get_field_elem_as_mjd

(

const EPR_SField *

field

)

Interpretes a memory data as a short data

Parameters

field	the pointer at the array to convert
time	the pointer at the time structure to get

Returns

the time [days, seconds, microseconds] or NULL if an error occured.

Definition at line 596 of file epr_typconv.c.

epr_get_field_elem_as_short()

short epr_get_field_elem_as_short	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a short value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the short typed element or error_code if an error occured.

Definition at line 155 of file epr_typconv.c.

epr_get_field_elem_as_str()

const char* epr_get_field_elem_as_str

(

const EPR_SField *

field

)

Interpretes a memory data as a string.

Parameters

field

the pointer at the array to convert

Returns

the char typed element or NULL if an error occured.

Definition at line 624 of file epr_typconv.c.

epr_get_field_elem_as_uchar()

epr_uchar epr_get_field_elem_as_uchar	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a uchar value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the uchar typed element or error_code if an error occured.

Definition at line 98 of file epr_typconv.c.

epr_get_field_elem_as_uint()

epr_uint epr_get_field_elem_as_uint	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a uint value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the uint typed element or error_code if an error occured.

Definition at line 363 of file epr_typconv.c.

epr_get_field_elem_as_ushort()

epr_ushort epr_get_field_elem_as_ushort	(	const EPR_SField *	field,
		epr_uint	elem_index
	)

Interpretes a memory as a ushort value

Parameters

field	the pointer at the array to convert
elem_index	the index of the element in the given array to convert

Returns

the ushort typed element or error_code if an error occured.

Definition at line 222 of file epr_typconv.c.

epr_get_field_elems_char()

const char* epr_get_field_elems_char

(

const EPR_SField *

field

)

Interpretes a memory data as a char data

Parameters

field

the pointer at the array to convert

Returns

the char typed element or NULL if an error occured.

Definition at line 71 of file epr_typconv.c.

epr_get_field_elems_double()

const double* epr_get_field_elems_double

(

const EPR_SField *

field

)

Interpretes a memory data as a double data

Parameters

field

the pointer at the array to convert

Returns

the double typed element or NULL if an error occured.

Definition at line 569 of file epr_typconv.c.

epr_get_field_elems_float()

const float* epr_get_field_elems_float

(

const EPR_SField *

field

)

Interpretes a memory data as a float data

Parameters

field

the pointer at the array to convert

Returns

the float typed element or NULL if an error occured.

Definition at line 487 of file epr_typconv.c.

epr_get_field_elems_int()

const int* epr_get_field_elems_int

(

const EPR_SField *

field

)

Interpretes a memory data as a int data

Parameters

field

the pointer at the array to convert

Returns

the int typed element or NULL if an error occured.

Definition at line 336 of file epr_typconv.c.

epr_get_field_elems_short()

const short* epr_get_field_elems_short

(

const EPR_SField *

field

)

Interpretes a memory data as a short data

Parameters

field

the pointer at the array to convert

Returns

the short typed element or NULL if an error occured.

Definition at line 195 of file epr_typconv.c.

epr_get_field_elems_uchar()

const epr_uchar* epr_get_field_elems_uchar

(

const EPR_SField *

field

)

Interpretes a memory data as a uchar data

Parameters

field

the pointer at the array to convert

Returns

the uchar typed element or NULL if an error occured.

Definition at line 128 of file epr_typconv.c.

epr_get_field_elems_uint()

const epr_uint* epr_get_field_elems_uint

(

const EPR_SField *

field

)

Interpretes a memory data as a uint data

Parameters

field

the pointer at the array to convert

Returns

the uint typed element or NULL if an error occured.

Definition at line 408 of file epr_typconv.c.

epr_get_field_elems_ushort()

const epr_ushort* epr_get_field_elems_ushort

(

const EPR_SField *

field

)

Interpretes a memory data as a ushort data

Parameters

field

the pointer at the array to convert

Returns

the ushort typed element or NULL if an error occured.

Definition at line 261 of file epr_typconv.c.