Questions about the string class.

[DrBob]

Using gcc 3.3 on MAC OS X.

i have a variable called:
string x;

I need to copy the string using memcpy so how do I get the pointer to
the data and its length in bytes?

 

[Unforgiven]

Using gcc 3.3 on MAC OS X.

i have a variable called:
string x;

I need to copy the string using memcpy so how do I get the pointer to
the data and its length in bytes?

Getting the string: x.c_str();

Getting the length in bytes: (x.length() + 1) * sizeof(string::value_type)
Remove the +1 bit if you don't need the terminating NULL-character.

 

[Victor Bazarov]

Using gcc 3.3 on MAC OS X.

i have a variable called:
string x;

I need to copy the string using memcpy so how do I get the pointer to
the data and its length in bytes?

Is this a homework assignment?

Take a C++ book and look at the member functions of the
'basic_string' template.

 

[=?iso-8859-1?Q?Juli=E1n?= Albo]

DrBob escribió:

i have a variable called:
string x;

I need to copy the string using memcpy so how do I get the pointer to
the data and its length in bytes?

Use the string member function copy.

Regards.