Why I can not convert float to int correctly

[MatrixZ]

The folloing code looks to me a bug. Can any body help? Thanks

float c= 0.01, v=0.001;
float u= c/v;
cout<< "u="<<u<<endl;
int y =(int) u;
cout<< " y=" <<y<< endl;

/// Output

u=10
y=9

[shacktar]

This is due to the inaccuracies of floating point. The division is probably getting something like 9.9999988..., and that would display as 10 as a float but it would be truncated when converted to an int.

[MatrixZ]

You are right. I chenged the type from flopat to double and I got correct answer. Thanks

Double c= 0.01, v=0.001;
double u= c/v;
cout<< "u="<<u<<endl;
int y =(int) u;
cout<< " y=" <<y<< endl;

/// Output

u=10
y=10

[samusamu]

@MatrixZ
mark it as solved, so that other people, which will try to help, won't get in, while people looking for an answer will know the answer is available.

[ne555]

double is innaccurate too. You may want to round instead of truncate.