How to take input from user in a specific format in c++?

Question

for example if we want the user to give input for the date in the following format : 01/01/2018 and we want to read the day, month, and year separetly .

Answer 1

A noob way:
- Get the input into string variable named e.g. <input>.

- Create a string array with 3 elements e.g. <arr>, use a for loop to iterate <input>, copy each numeric character to <arr> filter numeric characters by using std::isdigit() function.

http://en.cppreference.com/w/cpp/string/byte/isdigit

- Skip/ignore non numeric characters, except when you find a '/', increment the index of <arr> element used, so next copied character will be stored in the next element.

- Use the string conversion function to convert the <arr> elements to number.

http://en.cppreference.com/w/cpp/string/basic_string/stol

http://en.cppreference.com/w/cpp/string/basic_string/stof

- If all 3 elements are correctly populated then you have your data.

Good luck : )

Answer 2

Thanks for the help😊

Answer 3

check out std::strtok
http://en.cppreference.com/w/cpp/string/byte/strtok

Answer 4

can some write a simple code on the same??

Answer 5

you will need to parse the string.

Answer 6

I dont know about parsing of string?