====== atoi ======
{{tag>number_parsing}}
''int atoi(str s)''

===== Description =====
Returns s parsed as a decimal integer. If s cannot be parsed as an integer, returns 0.

If s is too big or too small to fit into int, returns [[constants:INT_MAX]] with the sign of the input.

Supports signs and [[:Number prefixes]].

<note tip>To parse fixed-point numbers, use [[atof]].</note>

<note tip>For more flexibility in parsing and error handling, use [[ParseInt]].</note>

===== Examples =====
<code>
atoi("123") -> 123
atoi("0") -> 0
atoi("999999999999") -> 2147483647 // Too big
atoi("-99999999999") -> -2147483647 // Too small
atoi("not a number") -> 0 // Error
atoi("1.3") -> 0 // Error
atoi("0xff") -> 255 // Hexadecimal prefix
</code>