references/C/7_statements.md

Conditional Statements

Code that gets executed

Conditional/Selection Statements

If Statement

Evaluates a condition and executes different compound statements depending on the evaluation.

if (!condition) statement;

Ideally you want to wrap the code blocked statements in braces

if (condition) {
	statement;
}
else{
	statement2;
}

You can also add more conditions if the first doesn't match, if the other conditiosn also don't match then the else will execute.

if (condition) {
	statment;
}
else if (condition2){
	statement2;
}

C doesn't have an elseif, elif, etc. Instead it just performs another if statement after the else clause.

Switch statement

Select from a number of different values/case depending on the switch value

switch (eggs) {
	case 0: printf("no eggs"); break;
	case 1: printf("one egg"); break;
	default: printf("default value if neither case match switch"); break;
}

In C if the breaks aren't there, it'll execute code from that match. This includes all the cases after the match.