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| author | Simon Marlow <marlowsd@gmail.com> | 2008-10-07 15:09:57 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2008-10-07 15:09:57 +0000 |
| commit | d0f7e402963b6f6cbe78c2a0421da2dacdca6921 (patch) | |
| tree | fa58225009a1df1c148df1358b5250c58bf92212 /docs | |
| parent | 56769fc5a83378d01a5583bc8eca94a8b7e84bdd (diff) | |
| download | haskell-d0f7e402963b6f6cbe78c2a0421da2dacdca6921.tar.gz | |
update documentation for PostfixOperators
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/users_guide/glasgow_exts.xml | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/docs/users_guide/glasgow_exts.xml b/docs/users_guide/glasgow_exts.xml index 784f569bb9..2169bbaae5 100644 --- a/docs/users_guide/glasgow_exts.xml +++ b/docs/users_guide/glasgow_exts.xml @@ -1176,8 +1176,9 @@ fromInteger :: Integer -> Bool -> Bool <title>Postfix operators</title> <para> -GHC allows a small extension to the syntax of left operator sections, which -allows you to define postfix operators. The extension is this: the left section + The <option>-XPostfixOperators</option> flag enables a small +extension to the syntax of left operator sections, which allows you to +define postfix operators. The extension is this: the left section <programlisting> (e !) </programlisting> @@ -1194,10 +1195,6 @@ That is, the operator must be a function of two arguments. GHC allows it to take only one argument, and that in turn allows you to write the function postfix. </para> -<para>Since this extension goes beyond Haskell 98, it should really be enabled -by a flag; but in fact it is enabled all the time. (No Haskell 98 programs -change their behaviour, of course.) -</para> <para>The extension does not extend to the left-hand side of function definitions; you must define such a function in prefix form.</para> |