DIGRAPH | NODIGRAPH

Pragma equivalent

None.

Purpose

Enables recognition of digraph key combinations or keywords to represent characters not found on some keyboards.

Note: A digraph is a combination of keys that produces a character that is not available on some keyboards.

Syntax


   .-DIGR---.   
>>-+-NODIGR-+--------------------------------------------------><

Defaults

DIGRAPH

Usage

Table 1 shows the digraphs that z/OS® XL C/C++ supports:

Table 1. Digraphs
Key Combination	Character Produced
<%	{
%>	}
<:	[
:>	]
%:	#
%%¹	#
%:%:	##
%%%%¹	##

Table 2 shows additional keywords that z/OS XL C++ supports:

Table 2. Additional keywords
Keyword	Characters produced
bitand	&
and	&&
bitor	\|
or	\|\|
xor	^
compl	~
and_eq	&=
or_eq	\|=
xor_eq	^=
not	!
not_eq	!=

IPA effects

The IPA link step issues a diagnostic message if you specify the DIGRAPH option on that step.

Predefined macros

__DIGRAPHS__ is predefined to 1 when the DIGRAPH compiler option is in effect.

Examples

Note: Digraphs are not replaced in string literals, comments, or character literals. For example:

     char * s = "<%%>";   // stays "<%%>"

     switch (c) {
       case '<%' : ...    // stays '<%'
       case '%>' : ...    // stays '%>'
     }

Related information

See z/OS XL C/C++ Language Reference for more information on digraphs.

¹ The digraphs %% and %%%% are not digraphs in the C Standard. For compatibility with z/OS XL C++, however, they are supported by z/OS XL C. Use the %: and %:%: digraphs instead of %% and %%%% whenever possible.