find first of string c++ code example
Example 1: find_first_of c++
#include <algorithm>
#include <iostream>
#include <vector>
int main()
{
std::vector<int> v{0, 2, 3, 25, 5};
std::vector<int> t{3, 19, 10, 2};
auto result = std::find_first_of(v.begin(), v.end(), t.begin(), t.end());
if (result == v.end()) {
std::cout << "no elements of v were equal to 3, 19, 10 or 2\n";
} else {
std::cout << "found a match at "
<< std::distance(v.begin(), result) << "\n";
}
}
Example 2: c++ first letter of string
#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;
}