new , strucure and PROGRAM CRASH

[babu198649]

hi
i have a structure xml_data


struct xml_data
{
int prf;
int *pVsipl_buffer;
};



i have declared and allocated memory like this in constructor

data = new xml_data;
data->pVsipl_buffer = new int[LOOP*COL]//LOOP and COL are
//#define(d) constants;
xml_data *data;



now i pass this strucure pointer as an argument to a function (bpg) which resides in another file

bpg(xml_data * ptVsip_obj)
{
for(m=0;m<LOOP;m++)
for(n=0;n<COL;n++)
{
ptVsip_obj->pVsipl_buffer[m*COL+n]; //if i comment this line no
//crashing of program
//else crash
}
}



bpg(data); //crashes


should i have to new the structure and the array in both the files.
(i.e) in called function and calling function.

[weaknessforcats]

i have declared and allocated memory like this in constructor

What constructor?? I don't see a constructor here.

Maybe you could post the actual struct with the constructor in it plus the constructor itself.

[babu198649]

What constructor?? I don't see a constructor here.

i have not posted the entire program .

thanks for reply


i have found the error.

while newing the class i have allocated like this

data = new xml_data;
data->pVsipl_buffer = new int(LOOP*COL);

instead of square brace( [LOOP*COL] ) i have used curly brace((LOOP*COL)) .


but it had compiled well but caused runtime error

[weaknessforcats]

I see. So you created a new int with a value of LOOP*COL rather than an array of int with LOOP*COL elements.

Glad you found it.