How can I convert a string to an integer in C++ for cryptocurrency transactions?

3 answers

• Anshu AgarwalMar 19, 2023 · 3 years ago
  To convert a string to an integer in C++, you can use the stoi() function from the <string> library. Here's an example: ```cpp #include <iostream> #include <string> int main() { std::string str = "12345"; int num = std::stoi(str); std::cout << "Converted integer: " << num << std::endl; return 0; } ``` This will output: ``` Converted integer: 12345 ``` Make sure to handle any exceptions that may occur, such as if the string cannot be converted to an integer.
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• Kevin BeardsleeJan 05, 2026 · a month ago
  In C++, you can also use the atoi() function from the <cstdlib> library to convert a string to an integer. Here's an example: ```cpp #include <iostream> #include <cstdlib> int main() { const char* str = "12345"; int num = std::atoi(str); std::cout << "Converted integer: " << num << std::endl; return 0; } ``` This will output the same result as the previous example.
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• Brian SpanglerSep 12, 2025 · 5 months ago
  Converting a string to an integer in C++ for cryptocurrency transactions is a common task. One way to achieve this is by using the stoi() function from the <string> library. This function converts the string to an integer and returns the result. However, it's important to note that if the string contains non-numeric characters, an exception will be thrown. To handle this, you can use a try-catch block to catch the exception and handle it accordingly. Another approach is to use the stringstream class from the <sstream> library. You can create a stringstream object, pass the string to it, and then extract the integer value using the >> operator. Here's an example: ```cpp #include <iostream> #include <sstream> int main() { std::string str = "12345"; std::stringstream ss(str); int num; ss >> num; std::cout << "Converted integer: " << num << std::endl; return 0; } ``` Both methods are valid and can be used depending on your specific requirements and preferences.
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