CS 161 Lecture Notes - Lecture 5: Relational Operator, Delimiter, Memory Address
8 Feb 2018
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Document Summary
Variable data storage location with a name, referred to as a box. Primitive types different sizes of things to store, set sizes, pre-defined: floats, doubles, chars. Conditional checks if a statement is true or false and how to act. C style strings can also be used in c++ but not in this course: come from Allows us to take predefined data types: allows us to take in more than numbers or single entities. Used to make sure programs don"t crash when the user enters wrong data. Hello world : stored in box fashion, each character is its own box and can be evaluated. Use getline: there are two getline functions. getline -> takes the istream, takes the string variable, extracts until delimiter or \n (newline: use this one!! getline -> c-string: used in c programs. String my_str = ; cout << give me a string: ; getline(cin, my_str): strings are dynamic not a set size.
