for(expression1; expression2; expression3) statements;

for(i = 0; i < 10; i++)
{
statements;
}

void main()
{
int Mult[50];
unsigned char i;
for(i = 1; i <= 49; i++)
{
Mult[i] = i*i;
}
}

for(i = 0; i < 10; i++)
{
for(j = 0; j < 10; j++)
{
MyArray[i][j] = 0;
}
}

for(;;)
{
statements;
}

i = 0;
for(; i < 10;)
{
statements;
i++;
}

i = 0;
for(;; i++)
{
statements;
if(i >= 10) break;
}

 p = 0;
while(p < 100)
{
statements;
p++;
if(p == 10) break;
}

Continue;

statements;
Loop:
statements;
goto Label;

or

statements;
Loop:
statements;
if(condition) goto Label;

type name(parameters)
{
body
}

float Circumference(float radius)
{
float c;
c = 2*PI*radius;
return c;
}

Circ = Circumference(2.5);

//
// This function calculate the area of a cylinder. The radius and height
// are passed as parameters to the function
//
float Cyl_Area(float radius, float height)
{
float c;
c = 2*PI*radius*height;
return c;
}
//
// This function calculate the volume of a cylinder. The radius and height
// are passed as parameters to the function
//
Float Cyl_Volume(float radius, float height)
{
float c;
c = PI*radius*radius*height;
return c;
}

 /*-----------------------------------------------------------------------------------------------
This program calculates the area and volume of a cylinder. The radius and height
of the cylinder are passed as parameters to two functions which calculate the
area and the volume.
In this example the radius and height are assumed to be 3.0cm and 12.5cm
respectively.
The area is stored in variable c_area, and the volume is stored in variable
c_volume.
------------------------------------------------------------------------------------------------*/
//
// This function calculates the area of a cylinder. The radius and height are passed
// as parameters to the function
//
float Cyl_Area(float radius, float height)
{
float c;
c = 2*PI*radius*height;
return c;
}
//
// This function calculates the volume of a cylinder. The radius and height are
// passed as parameters to the function
//
float Cyl_Volume(float radius, float height)
{
float c;
c = PI*radius*radius*height;
return c;
}
//
// Main program
//
void main()
{
float r, h, c_area, c_volume;
r = 3.0; 				// The radius
h = 12.5; 				// The height
c_area = Cyl_Area(r, h); 		// Calculate the area
c_volume = Cyl_Volume(r, h); 	// Calculate the volume
}

float Circumference(float radius);

float Circumference(float);

/*-----------------------------------------------------------------------------------------------
This program calculates the area and volume of a cylinder. The radius and height
of the cylinder are passed as parameters to two functions which calculate the
area and the volume.
In this example the radius and height are assumed to be 3.0cm and 12.5cm
respectively.
The area is stored in variable c_area, and the volume is stored in variable
c_volume.
------------------------------------------------------------------------------------------------*/
float Cyl_Area(float, float);
float Cyl_Volume(float, float);
//
// Main program
//
void main()
{
float r, h, c_area, c_volume;
r = 3.0; 				// The radius
h = 12.5; 				// The height
c_area = Cyl_Area(r, h); 		// Calculate the area
c_volume = Cyl_Volume(r, h); 	// Calculate the volume
}
//
// This function calculates the area of a cylinder
//
float Cyl_Area(float radius, float height)
{
float c;
c = 2*PI*radius*height;
return c;
}
//
// This function calculates the volume of a cylinder
//
float Cyl_Volume(float radius, float height)
{
float c;
c = PI*radius*radius*height;
return c;
}

void SET_LED(void)
{
PORTB = 0xFF;
}

float Inc(float x)
{
x++;
return x;
}
//
// Main program
//
void main()
{
float a, b;
a = 5.0; 	// a = 5.0
b = Inc(a); 	// a = 5.0, b = 6.0
}

a = Sum(MyArray[5]);

 /*-----------------------------------------------------------------------------------------------
This program demonstrates how an array can be passed to a function. Here, array N is initialized with numbers 1 to 10. Then, function Sum is called to calculate the sum of the array elements. The sum is then returned to the main program and stored in variable s
------------------------------------------------------------------------------------------------*/
//
// This function calculates the sum of the elements of an array
//
int Sum(int A[ ])
{
char i;
int Total = 0;
for(i = 0; i < 10; i++) Total = Total + A[i];
return Total;
}
//
// Main program
//
void main()
{
int s, N[10];
char i;
for(i = 0; i < 10; i++) N[i] = i + 1; 	// Initialize array N
s = Sum(N); 				// Calculate the sum of elements
}