lib/get_num.h

This is lib/get_num.h (Listing 3-5, page 59), an example from the book, The Linux Programming Interface.

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Cover of The Linux Programming Interface

+/* get_num.h
+
+   Header file for get_num.c.
+*/
 #ifndef GET_NUM_H
 #define GET_NUM_H
 
 #define GN_NONNEG       01      /* Value must be >= 0 */
 #define GN_GT_0         02      /* Value must be > 0 */
 
                                 /* By default, integers are decimal */
 #define GN_ANY_BASE   0100      /* Can use any base - like strtol(3) */
 #define GN_BASE_8     0200      /* Value is expressed in octal */
 #define GN_BASE_16    0400      /* Value is expressed in hexadecimal */
 
 long getLong(const char *arg, int flags, const char *name);
 
 int getInt(const char *arg, int flags, const char *name);
 
 #endif

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