How to convert octal to decimal

[tipjones19]

I am trying to write a program in Visual C++ 6.0 using MFC where I take an octal number and convert it to decimal. I understand how to convert octal to decimal but am having a hard time writing the program. However, I find out about the setioflags method but when writing the following code it does not convert octal to decimal, actually it converts octal to hex instead.

cout<< "The octal vale of 00076 is" <<setiosflags(ios::dec)<<00076<<endl;

3e was returned instead of 62. Can anyone help me with this program.

[LB]

You don't need to set the ios flags to decimal, they are set to decimal by default unless you change it. I get 62 just fine by just doing cout << 00076 << endl;

[helios]

I'd just like to point out that 00076 merely represents a value. 076, 62, and 0x3E all mean the same thing.
What you're doing doesn't really make any sense. The program could be changed to

std::cout <<"The octal vale of 00076 is "<<62<<std::endl;

and it would compile to exactly the same machine code.

[tipjones19]

Thanks,
Is there an easier way to convert octal to decimal. I just need an easy way to convert an octal input to decimal. The reason for this is that I need to check the user input, there are certain octal values that can be accepted and I think it will be best to convert the ranges to decimal and convert the user input and compare. I have been having problems with comparing two octal numbers.

[buffbill]

Yes
int n=076;//octal value
std::cout<<"the decimal value of n is "<<dec<<n<<std::endl;//prints 62
Note: as helios says this is just reformatting a number expressed in one base (8) to another base (10)..........both meanings are identical.

[tipjones19]

Thanks Buffbill,
I have one more question, how to store 62 into a variable instead of printing it out. So I want to convert an octal number to decimal and store the decimal value into a variable.