std::string to char*

[cstriker]

Hi I am trying to convert a string to char* using casting.

std::string str= "whatever";
char* val = (char*) str.c_str();

which compiles fine. But i end up with a const char despite casing it to a char*. I want to be able to append to this char array. Any ideas?

Thank You

[gpraghuram]

Hi I am trying to convert a string to char* using casting.

std::string str= "whatever";
char* val = (char*) str.c_str();

which compiles fine. But i end up with a const char despite casing it to a char*. I want to be able to append to this char array. Any ideas?

Thank You

After getting thec_str() copy the value to a C string which has enough spaces to hold the same

Raghuram

[weaknessforcats]

You do not use the c_str() method to get a char*. That method returns a const char*.

Indead use the copy() method. That makes a copyu of the string object as a C-string. Be sure you have allocated enough memory first by calling the size() method. Add 1 to the size to allow for the null terminator and then allocate.