JasPer  4.2.3
jas_getopt.h
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1 /*
2  * Copyright (c) 1999-2000 Image Power, Inc. and the University of
3  * British Columbia.
4  * Copyright (c) 2001-2002 Michael David Adams.
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6  */
7 
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63 
69 #ifndef JAS_GETOPT_H
70 #define JAS_GETOPT_H
71 
72 #ifdef __cplusplus
73 extern "C" {
74 #endif
75 
76 /* The configuration header file should be included first. */
77 #include <jasper/jas_config.h>
78 
84 /******************************************************************************\
85 * Constants.
86 \******************************************************************************/
87 
89 #define JAS_GETOPT_EOF (-1)
91 #define JAS_GETOPT_ERR '?'
92 
94 #define JAS_OPT_HASARG 0x01 /* option has argument */
95 
96 /******************************************************************************\
97 * Types.
98 \******************************************************************************/
99 
104 typedef struct {
105 
106  /* The unique identifier for this option. */
107  int id;
108 
109  /* The name of this option. */
110  const char *name;
111 
112  /* option flags. */
113  int flags;
114 
115 } jas_opt_t;
116 
117 /******************************************************************************\
118 * External data.
119 \******************************************************************************/
120 
125 JAS_EXPORT
126 extern int jas_optind;
127 
132 JAS_EXPORT
133 extern const char *jas_optarg;
134 
139 JAS_EXPORT
140 extern int jas_opterr;
141 
142 /******************************************************************************\
143 * Prototypes.
144 \******************************************************************************/
145 
157 JAS_EXPORT
158 int jas_getopt(int argc, char **argv, const jas_opt_t *opts);
159 
164 #ifdef __cplusplus
165 }
166 #endif
167 
168 #endif
JAS_EXPORT int jas_optind
The current option index.
Definition: jas_getopt.c:87
JAS_EXPORT int jas_getopt(int argc, char **argv, const jas_opt_t *opts)
Get the next option.
Definition: jas_getopt.c:107
JAS_EXPORT const char * jas_optarg
The current option argument.
Definition: jas_getopt.c:89
JAS_EXPORT int jas_opterr
The debug level.
Definition: jas_getopt.c:88
Command line option type.
Definition: jas_getopt.h:104