Tokenizing a std::string with strtok
Tokenizing a std::string can be done using a variety of methods. One common approach is to use the C function strtok(), which takes a character array as input and breaks it up into tokens based on a specified delimiter. However, std::string objects cannot be directly passed to strtok() because they do not point to a character array.
To overcome this limitation, we can use an alternative method to tokenize the std::string. One such method is to use an istringstream object, which can be created by passing the std::string to its constructor. The istringstream object can then be used to read tokens from the string using the getline() function, which takes a delimiter as its second argument.
#include <iostream> #include <string> #include <sstream> int main() { std::string myText("some-text-to-tokenize"); std::istringstream iss(myText); std::string token; while (std::getline(iss, token, '-')) { std::cout <p>In this example, the istringstream object is used to read the std::string "some-text-to-tokenize" into a series of tokens, delimited by the "-" character. The getline() function is used to extract each token from the string, and the tokens are then printed to the console.</p> <p>An alternative to using an istringstream is to use a utility such as Boost.Tokenizer, which provides a more flexible and customizable approach to tokenizing strings. However, the istringstream approach is generally sufficient for basic tokenization needs.</p></sstream></string></iostream>
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