The Null Character ‘\0’

• The reason it can only hold a string of size-1 characters is that we need one space to hold the sentinel value ‘\0’ to indicate the extent of the actual string stored in the variable str

• Example: char str[5];

Warning: ensuring that there is

sufficient space is your problem!

The character ‘\0’ is known as the

null character and has value 0

The thing that distinguishes a string

variable from an array of characters is

that a string must contain the

null character

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