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QUERRY about two-character punctuation tokens, called digrap

ashish_gupta... Posted: Tue Jan 18, 2005 12:39 pm

Joined: 24 Jan 2005

Posts: 2

QUERRY about two-character punctuation tokens, called digrap

Hi,
C++ also recognizes two-character punctuation
tokens, called digraphs. The digraphs and their
equivalent tokens are:

<: [
:> ]
<% {
%> }
%: #
%:%: ##

The following program is valid in both C99 and C++:

%:include <stdio.h>

void copy(char d<::>, const char s<::>,
int len)
<%
while (len-- >= 0)
<%
d<:len:> = s<:len:>;
%>
%>

int main() <%
return 0;
%>

My question is what is the need of such digraphs?
For example why one will use `<%` in place of `{`?
I tried searching on google but was unable to find
something satisfactory.If someone can give me any
pointer or any useful link it would be very helpful.

Thanks for your attention.

Regards
Ashish.

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suparna69 Posted: Wed Jan 19, 2005 9:34 pm

Joined: 28 Dec 2004

Posts: 3

QUERRY about two-character punctuation tokens, called digrap

Can some one let me know what books you used for
following: (please include author name and publisher
if possible)

Numerical Analysis
Differential Calculus
Integral Calculus
Linear Algebra
Engineering Mathematics

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