C Statements and blocks.

Statements

C has three types of statement.

assignment
```
	=
```
selection (branching)
```
	if (expression)
	else
	switch
```

iteration (looping)

	while (expression)
	for (expression;expression;expression)
	do {block}

Blocks

These statements are grouped into blocks, a block is identified by curly brackets...There are two types of block.

statement blocks
```
	if ( i == j)
        {
          printf("martin \n");
        }
```
The statement block containing the printf is only executed if the i == j expression evaluates to
TRUE.
function blocks
```
	int add( int a, int b)      /* Function definition */
	{
	  int c;
	  c = a + b;
	  return c;
	}
```
The statements in this block will only be executed if the add function is called. Complete function example

Martin Leslie