could someone helpme,, with read .dat files

[Ayman]

Hi

HI all,

please I need someone to correct my code, it generate 0 errors, but it isn't executable :(
i want use it with my project.

can not read .dat files ..
 code is attachment with .dat files

Note: in line: 60 function: tHistogram *HistogramRead(  const char* pSzFilename ) 
i changed it to const , 

because when it was only char *pSzFilename ,i got this error:
prog1.cpp: In function ‘IplImage* SkinDetect(IplImage*)’:
prog1.cpp:114:56: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
prog1.cpp:115:59: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]

so, is there a relation when i change the char to const char*,  with cannot read files ?
or .dat files is empty so return null ? 
i cannot open .dat to check is contain data