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Malfunction on argc / argv
GWD Text Editor Forum: Technical Support: Malfunction on argc / argv

By Steven G Schooler on Thursday, May 18, 2000 - 07:21 pm:

tabsize.c gpf'd (crashed) my GWD (v3.0) session in Windows 95 (OSR2-B). I followed instructions re running it with a parameter:

Param1 "tabsize.c 9"
ExecScript

and running it without a parameter. I investigated the resulting argc and argv values and found the following 2 anomalies:

Running it with a parameter, argc = 3; running it without a parameter, argc = 2. This explains the crash. But why is argc consistently 1 more than normal? For example, I would expect argc = 2, when run with a parameter.

When running with a parameter, the following formula

(int) ( (sizeof(argv)) / (sizeof(char *)) )

returns a value of 1, rather than 2, even though argv[1] != NULL (i.e. *argv[1] = "9"). I double checked the syntax in the above formula with a standard array. Why does the formula miscalculate when specifically applied to the argv array?

By Vedran Gaco (Vgaco) on Friday, May 19, 2000 - 06:35 am:

Thanks for bug report. When you run the program without parameters, it sends two arguments in argv, program name, and NULL (terminator) argument. NULL argument should not be counted, but GWD Text Editor count it. Bug will be fixed in the first minor update.

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