get first char in string c++ code example

Example 1: find character in string c++

auto char_to_find = 'a'
if (str.find(char_to_find) != std::string::npos) {
    // character found
}

Example 2: c++ first letter of string

// string::at
#include <iostream>
#include <string>

int main ()
{
  std::string str ("Test string");
  for (unsigned i=0; i<str.length(); ++i)
  {
    std::cout << str.at(i);
  }
  return 0;
}