c++ string contains
if (string1.find(string2) != std::string::npos) {
std::cout << "found!" << '\n';
}c++ string contains
if (string1.find(string2) != std::string::npos) {
std::cout << "found!" << '\n';
}std string find character c++
// string::find
#include <iostream> // std::cout
#include <string> // std::string
int main ()
{
std::string str ("There are two needles in this haystack with needles.");
std::string str2 ("needle");
// different member versions of find in the same order as above:
std::size_t found = str.find(str2);
if (found!=std::string::npos)
std::cout << "first 'needle' found at: " << found << '\n';
found=str.find("needles are small",found+1,6);
if (found!=std::string::npos)
std::cout << "second 'needle' found at: " << found << '\n';
found=str.find("haystack");
if (found!=std::string::npos)
std::cout << "'haystack' also found at: " << found << '\n';
found=str.find('.');
if (found!=std::string::npos)
std::cout << "Period found at: " << found << '\n';
// let's replace the first needle:
str.replace(str.find(str2),str2.length(),"preposition");
std::cout << str << '\n';
return 0;
}how to find something in a string in c++
const char* c = "Word";
string str = "WhereIsMyWordThatINeed";
cout << "the word is at index " << str.find(c);
//this will print "the word is at index 9"c++ find string in string
#include <iostream>
#include <string>
#include <algorithm>
#include <functional>
int main()
{
std::string in = "Lorem ipsum dolor sit amet, consectetur adipiscing elit,"
" sed do eiusmod tempor incididunt ut labore et dolore magna aliqua";
std::string needle = "pisci";
auto it = std::search(in.begin(), in.end(),
std::boyer_moore_searcher(
needle.begin(), needle.end()));
if(it != in.end())
std::cout << "The string " << needle << " found at offset "
<< it - in.begin() << '\n';
else
std::cout << "The string " << needle << " not found\n";
}string.find in c++
If not found then returns npos or -1 in intCopyright © 2021 Codeinu
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