I used Microsoft's VC 60 debug newspapers and edited systems, and the system had serious instability. After a series of tracking, it was last positioned on a string function strull. The original process is called like this:
CHAR * SZFILEID;
.....
IF (Strlen (SZFILEID) == 0) RETURN FALSE;
.......
When the SZFILEID is assiable NULL, the system does not use it to return 0, but a serious system exception has occurred. Separate written programs Test the function int LEN = Strlen (NULL); the system has a serious error and prompts to exit.
The string function is a function that everyone is often used, so it is specifically written to communicate with you, interested in testing.
Liu Wanfu
February 21, 2003
