Access violation - Malloc problem

[Rossel Nathanaël]

146: unsigned short *sDate;
147:
148: sDate = (unsigned short *)malloc(100);
17E4157C 6A 64 push 64h
17E4157E E8 05 4C 00 00 call malloc (17e46188)
17E41583 83 C4 04 add esp,4
17E41586 89 45 FC mov dword ptr [sDate],eax


When running only the line 17E4157E (malloc), I get next error :

First Chance Exception in : 0xC0000005: Access Violation

 

[Nicolas Pavlidis]

Maybe a litle bit information of the code following to the malloc call
would be helpfull!

146: unsigned short *sDate;
147:
148: sDate = (unsigned short *)malloc(100);

Try to write this line another way:
sDate=(unsigned chort*) malloc(100 * sizeof(unsigned short));

BTW this is a c++ newsgroup and so the following thing would be better
in C++:

sDate = new unsigned short[100]; ;-)

HTH && Kind regards,
Nicolas

 

[John Harrison]

146: unsigned short *sDate;
147:
148: sDate = (unsigned short *)malloc(100);
17E4157C 6A 64 push 64h
17E4157E E8 05 4C 00 00 call malloc (17e46188)
17E41583 83 C4 04 add esp,4
17E41586 89 45 FC mov dword ptr [sDate],eax


When running only the line 17E4157E (malloc), I get next error :

First Chance Exception in : 0xC0000005: Access Violation

Your heap has been corrupted by some earlier bug in your code.

john

 

[Rossel Nathanaël]

The problem has been resolve. They was a malloc(8) in an other function and
a strcpy with 9 character ('\0').