Tags: #◇Computer Science #◇CCPROG1 #◇C Programming #◇Reviewer #◇Finals

CCPROG1 Comprehensive Finals Reviewer

◇Overview

This reviewer consolidates the fundamental programming curriculum in C from CCPROG1: Logic Formulation and Introductory Programming. It spans the complete software development lifecycle, algorithmic logic formulation, flowcharts, variable typing, operators and expressions, modular decomposition with functions, control structures (selection and iteration), testing/debugging methodologies, and coding standards.

◇1. Core Syntax & Data Representation Matrix

Concept	Specifier / Syntax	Size (x86-64)	Range / Behavior
`char`	`%c`	1 byte	$-128$ to $127$ (ASCII code)
`int`	`%d` or `%i`	4 bytes	$-2^{31}$ to $2^{31}-1$ (approx $\pm 2.14 \times 10^9$ )
`float`	`%f`	4 bytes	6-7 decimal digits precision
`double`	`%lf`	8 bytes	15-17 decimal digits precision
Division `/`	`int / int` vs `float / int`	N/A	Integer division truncates towards zero ( $7/2 = 3$ ). Float division yields $3.5$ .
Modulo `%`	`a % b`	N/A	Remainder of integer division; operands must be integral.

Operator Precedence Hierarchy (Highest to Lowest)

Parentheses: ()
Postfix / Unary: ++, --, +, -, !
Multiplicative: *, /, %
Additive: +, -
Relational: <, <=, >, >=
Equality: ==, !=
Logical AND: && (Short-circuiting: evaluates right only if left is true)
Logical OR: || (Short-circuiting: evaluates right only if left is false)
Assignment: =, +=, -=, etc.

◇2. Modular Decomposition & Functions

In C, functions enforce encapsulation and procedural abstraction.

Pass-by-Value: C passes all primitive parameters by value. A local copy is allocated on the activation frame (call stack). Modifications to the formal parameter inside the callee do not affect the caller's actual arguments.
Scope & Storage Duration:
- Block scope: Visible only within enclosing {}.
- Function prototype: Declares return type and signature before main() so the compiler can perform type checking.

◇3. Control Flow Architecture

Selection Structures

if ... else if ... else: Evaluates sequential boolean conditions.
switch(expr): Evaluates integral expressions against constant labels. Requires explicit break; to prevent fallthrough.

Iterative Structures

while(condition): Pre-test loop. Executes 0 or more times.
for(init; condition; update): Deterministic count-controlled loop.
do ... while(condition);: Post-test loop. Guarantees execution at least once.

◇4. High-Yield Exam Checklist

Does integer division discard decimal portions? ( $5 / 2 = 2$ ).
Does scanf("%d", &val) require an address-of operator &?
Did you avoid placing a semicolon after if(...) or while(...) loops?
Are loop boundary conditions checked for off-by-one errors ( $<$ vs $\le$ )?
Are all accumulator variables (sum, count) initialized to zero before loops?
Does switch use integral types (int, char) and include default:?

Previous Topic: None
Next Topic: ◇CCPROG2
Prerequisites: ◇CCPROG1 Foundations, C Language Syntax
Cross-Curricular Connections: ◇CCDSTRU

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