Revision: 65326
http://sourceforge.net/p/brlcad/code/65326
Author: starseeker
Date: 2015-06-16 16:41:00 +0000 (Tue, 16 Jun 2015)
Log Message:
-----------
add a comment for BU_OPT_CHECK_ARGV0
Modified Paths:
--------------
brlcad/trunk/include/bu/opt.h
Modified: brlcad/trunk/include/bu/opt.h
===================================================================
--- brlcad/trunk/include/bu/opt.h 2015-06-16 16:35:57 UTC (rev 65325)
+++ brlcad/trunk/include/bu/opt.h 2015-06-16 16:41:00 UTC (rev 65326)
@@ -114,7 +114,11 @@
*/
typedef int (*bu_opt_arg_process_t)(struct bu_vls *, int argc, const char
**argv, void *);
-
+/**
+ * A common task when writing bu_opt_arg_process_t validators is to check the
+ * first argument of the argv array - this macro encapsulates that into a
+ * standard check.
+ */
#define BU_OPT_CHECK_ARGV0(_log_vls, _argc, _argv, _opt_name) \
if (_argc < 1 || !_argv || !_argv[0] || _argv[0][0] == '\0') { \
if (_log_vls) { \
@@ -123,7 +127,6 @@
return -1; \
}
-
/**
* @brief
* "Option description" structure.
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