Framework (A-Z)

Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.



// declaring an array of integers
int numbers[] = { 90, 150, 30 };
int a, b;

void setup() {
  a = numbers[0] + numbers[1]; // Sets variable a to 240
  b = numbers[1] + numbers[2]; // Sets variable b to 180

// different ways of declaring arrays of chars
char string1[15];
char string2[7] = {'h', 'e', 'l', 'l', 'o', '!'};
char string3[7] = {'h', 'e', 'l', 'l', 'o', '!', ''};
char string4[] = "hello there!";

int a = 10;

// allocates an array for holding 10 characters 
// (last position is for holding the '' or NULL string terminator
char *string5 = new char[a+1];  


// releases the memory space allocated for string5
delete [] string5;
Description An array is a list of data. It is possible to have an array of any type of data. Each piece of data in an array is identified by an index number representing its position in the array. The first element in the array is [0], the second element is [1], and so on.
datatype var[]
var[element] = value
datatype any primitive or compound datatype, including user defined classes
var any valid variable name
element int: must not exceed the length of the array - 1
value data to assign to the array element, must be the same datatype as the array
Usage Application
Related new
Updated on July 07, 2011 11:07:48pm PDT

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