Trigraph sequences

[junky_fellow]

What is the practical significance of having trigraph
sequences ?

 

[Suman]

What is the practical significance of having trigraph
sequences ?

The characters
#, \, ^, [, ], |, {, }, and ~
are part of the character set of C source code (7 bit ASCII
representation), but cannot be represented in the ISO 646-1983
Invariant Code Set. Hence the workaround. Trigraphs are replaced
before any other processing happens.

 

[Dave Thompson]

What is the practical significance of having trigraph
sequences ?

Today, basically just a small nuisance. In the days of terminals with
hardware keyboards and line connections and (thus) files using (7bit)
ISO646, they could sometimes be necessary.

- David.Thompson1 at worldnet.att.net