QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
sscanf() SIGSEGV in QNX4 |
| Ref. No. |
QNX.000009661 |
| Category(ies) |
Development |
| Issue |
sscanf() doesn't seem to like the -zu compiler option. The following code sample will SIGSEGV in 32-bit and print garbage with Null Assignment in 16-bit:
#include <stdio.h>
void main()
{
x09int day, year;
x09char weekday[20], month[20];
x09sscanf ( "Friday August 0014 1987", "%s %s %d %d", weekday, month, &day, &year );
x09printf ( "%s %s %d %dn", weekday, month, day, year );
}
|
| Solution |
The libraries only support the use of the -zu switch in certain 16-bit memory models, namely
compact, large, and huge. Calling a library function in a -zu environment in the flat, small, or medium memory models may or may not work depending on whether or not the function takes the address of an auto variable (?scanf does). |
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