fopen with relative path location

Hello,

I have a portable test project called "BCP_testProject"  from the MCSDK_2_00_09_21 (and I am using CCS 5.2). There is a line as following:

if ((pTestCfgFile = fopen ("..\\..\\wcdma\\ST_WCDMA_FDDR99DL_00003.txt", "r")) == NULL)

So, my question is, relative to what is this .txt file opened? Is it relative to the PROJECT_LOC path variable?

Regards

Burak