erase part of string c++ code example

Example 1: erase string c++

string& erase (size_t pos = 0, size_t len = npos);
/*
pos
Position of the first character to be erased.
If this is greater than the string length, it throws out_of_range.
Note: The first character in str is denoted by a value of 0 (not 1).
len
Number of characters to erase (if the string is shorter, as many characters as possible are erased).
A value of string::npos indicates all characters until the end of the string.
*/

Example 2: c++ erase substring

using namespace std;

string BasicString = "I dont like erasing strings";
string StrToErase = " dont";

string::size_type i = BasicString.find(StrToErase);

if (i != string::npos)
{
   BasicString.erase(i, StrToErase.length()); 
}

cout << BasicString << "\n"; // OUTPUT: I like erasing strings