how to check if element is present in map c++ code example

Example 1: check if key exists in map c++

if ( m.find("f") == m.end() ) {
  // not found
} else {
  // found
}

Example 2: check if a key is in map c++

if ( m.find("f") == m.end() ) {
  // not found
} else {
  // found
}