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Showing content from https://www.tutorialspoint.com/cpp_standard_library/cpp_string_erase.htm below:

C++ String erase Method

It erases part of the string, reducing its length.

Following is the declaration for std::string::erase.

string& insert (size_t pos, const string& str);

 string& erase (size_t pos = 0, size_t len = npos);

string& erase (size_t pos = 0, size_t len = npos);

• pos − It is an insertion point.

• str − It is a string object.

• len − It contains information about number of characters to erase.

It returns *this.

if an exception is thrown, there are no changes in the string.

In below example for std::string::erase.

#include <iostream>
#include <string>

int main () {
   std::string str ("sairamkrishna Mammahe is a one of the tech person.");
   std::cout << str << '\n';

   str.erase (10,8);
   std::cout << str << '\n';

   str.erase (str.begin()+9);
   std::cout << str << '\n';

   str.erase (str.begin()+5, str.end()-9);
   std::cout << str << '\n';

   return 0;
}

The sample output should be like this −

sairamkrishna Mammahe is a one of the tech person.
sairamkrisahe is a one of the tech person.
sairamkriahe is a one of the tech person.
sairah person.

string.htm

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