iso646.h in C Language

Created2024-05-28|Updated2024-11-03|C Tutorial

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The iso646.h header file specifies alternative spellings for some common operators. For example, it uses the keyword and as a substitute for the logical operator &&.

Here’s how the following condition can be expressed using these alternatives:

1
2
3

if (x > 6 and x < 12)
// is equivalent to
if (x > 6 && x < 12)

The defined alternative spellings are as follows:

and replaces &&
and_eq replaces &=
bitand replaces &
bitor replaces |
compl replaces ~
not replaces !
not_eq replaces !=
or replaces ||
or_eq replaces |=
xor replaces ^
xor_eq replaces ^=

Author: Johnson Lin

Link: http://linjiangxiong.com/2024/05/28/c-language-lib-iso646-h/

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