Editing C syntax (section)

====Array definition====
Arrays are used in C to represent structures of consecutive elements of the same type. The definition of a (fixed-size) array has the following syntax:

<syntaxhighlight lang=C>int array[100];</syntaxhighlight>

which defines an array named ''array'' to hold 100 values of the primitive type {{code|int}}. If declared within a function, the array dimension may also be a non-constant expression, in which case memory for the specified number of elements will be allocated. In most contexts in later use, a mention of the variable ''array'' is converted to a pointer to the first item in the array. The [[sizeof|{{code|sizeof}}]] operator is an exception: {{code|sizeof array}} yields the size of the entire array (that is, 100 times the size of an {{code|int}}, and {{code|sizeof(array) / sizeof(int)}} will return 100). Another exception is the & (address-of) operator, which yields a pointer to the entire array, for example

<syntaxhighlight lang=C>int (*ptr_to_array)[100] = &array;</syntaxhighlight>