ECS 30 Lecture Notes - Lecture 7: Data Segment, Global Variable, Scanf Format String
24 Apr 2018
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Document Summary
Functions can have multiple arguments: useful if you want to compute calculations with user input variables that are present in the same formula, the arguments are used to calculate the variable you want to return. Scanf() and input detection: returns the number of tokens matched. Ie. what was entered: useful to impose a format in string input. Friday, 20 april 2018: local variables (black scope) Local block variables mask previously declared variables with the same name: the variable disappears the end of the block. Within the local block, access to previous declared variables is given, and they can be manipulated. Must be declared before use (same as functions) Usually de ned on top of le: do not rely on them too much (eg. for easy problems), as that gets you into a bad habit and can lead to mistakes in code. Scope restricted to function containing the declaration.
