This C++ code defines a function named `strToVec` that takes...

This C++ code defines a function named strToVec that takes a std::string as input and converts it to a std::vector<int> by extracting integers from the string. Here's a step-by-step explanation of what the code does:

1. Inputs and Initialization:

   • The function takes one parameter named input of type std::string.
   • A std::stringstream object named iss is created and initialized with the input string, allowing the string to be processed as a stream.

2. Parsing Integers:

   • An int variable named number is declared to store integers extracted from the stream.
   • A std::vector<int> named output is created to store the integers extracted from the string.

3. Extracting Integers from the String:

   • A while loop iterates as long as integers (number) can be successfully extracted from the string stream iss using the extraction operator (>>).
   • Each extracted integer is added (using push_back) to the output vector.

4. Returning the Result:

   • Once the entire string has been processed, the function returns the output vector containing the integers.

Example Usage: If the input string is "10 20 30 40", the function would:

• Parse the string into integers: 10, 20, 30, and 40.
• Store these integers in the std::vector<int>: [10, 20, 30, 40].
• Return the vector [10, 20, 30, 40].

Edge Case:

• If the input string contains no numbers (e.g., "abc"), the function returns an empty vector.
• If the string contains non-integer characters mixed with integers (e.g., "10 abc 20"), non-integer parts are skipped, and the function extracts and returns only the valid integers [10, 20].

In summary, the code converts a space-separated list of integers in a string into a vector of integers.