Say we have the following string:

std::string str = "The quick brown fox jumps over the lazy dog";

And we want to find "fox"

Here are three methods:

1. Use std::string::find()
2. Use boost::contains()
3. Use pystring::find()

Method 1: Use std::string::find

bool found = str.find("fox") != str.npos;

This returns an iterator pointing at the beginning of the substring if found, or std::string::npos otherwise.

Method 2: Use boost::contains

#include <boost/algorithm/string/predicate.hpp>
found = boost::contains(str, "fox");

This has the advantage of returning a boolean.

Reference: Function contains

Method 3: Use pystring::find

#include <pystring.h>
found = pystring::find(str, "fox") != -1;

Reference: imageworks/pystring

Related

• How to split a string in C++
• How to do string formatting in C++
• How to replace all occurrences of a character in a std::string
• How to do case-insensitive string comparison in C++
• How to concatenate a string and an int in C++
• How to convert a string to lower or upper case in C++
• How to trim a std::string in C++
• How to get a const char* or a char* from a std::string
• How to convert an int to a std::string in C++