Vector. Checking to see if it contains "Key". C++

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How to find an item in a std::vector?

Hey like the title suggests i would like to check to see if the vector contains the string "Key". I have been looking around on Google and i cant find anything in the vector library. Can anybody help me with this. Thanks in advance.

That's why we have algorithms :) They work on any container (and more), rather than having to reimplement them for each one. http://en.cppreference.com/w/cpp/algorithm/find — chris, Dec 06 '12 at 16:19

score 3 · Accepted Answer · answered Dec 06 '12 at 16:20

3

You can use std::find for that. Assuming you have an std::vector full of std::strings:

#include <algorithm> // for std::find

std::vector<std::string> v = ....;
std::vector<std::string>::const_iterator it = std::find(v.begin(), v.end(), "Key");
bool found = it != v.end();

answered Dec 06 '12 at 16:20

juanchopanza

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Hey, Im getting an error. Data Member initialized is not allowed. – Pendo826 Dec 06 '12 at 16:25
Wow, you asked this 10 years ago and still got benefit from this conversation. Stackoverflow is awesome! – Ashutosh Tiwari Mar 06 '22 at 10:34

Vector. Checking to see if it contains "Key". C++

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