append strings c++ code example
Example 1: append string c++
// appending to string
int main ()
{
std::string str;
std::string str2="Writing ";
std::string str3="print 10 and then 5 more";
// used in the same order as described above:
str.append(str2); // "Writing "
str.append(str3,6,3); // "10 "
str.append("dots are cool",5); // "dots "
str.append("here: "); // "here: "
str.append(10u,'.'); // ".........."
str.append(str3.begin()+8,str3.end()); // " and then 5 more"
str.append<int>(5,0x2E); // "....."
std::cout << str << '\n';
return 0;
}
Example 2: c++ append a char to a string
// string::operator+=
int main ()
{
std::string name ("John");
std::string family ("Smith");
name += " K. "; // c-string
name += family; // string
name += '\n'; // character
std::cout << name;
return 0;
}
Example 3: append string to another string c++
// appending to string
int main ()
{
// easy way
std::string str = "Hello";
std::string str2 = " World";
std::cout << str + str2 << std::endl;
return 0;
}
Example 4: appending string in c++
int main() {
//"Ever thing inside these double quotes becomes const char array"
// std::string namee = "Caleb" +"Hello";//This will give error because adding const char array to const char array
std::string namee = "Caleb";
namee += " Hello";//This will work because adding a ptr to a actual string
std::cout << namee << std::endl;// output=>Caleb Hello
//You can also use the below
std::string namee2 = std::string("Caleb")+" Hello";// This will work because constructor will convert const char array to string, adding a ptr to string
std::cout << namee2 << std::endl;// output=>Caleb Hello
std::cin.get();
}