Commit c8643122 by Kaveh R. Ghazi Committed by Kaveh Ghazi

* ansidecl.h: Update comments reflecting previous change.

From-SVN: r45275
parent ec83eb53
2001-08-29 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* ansidecl.h: Update comments reflecting previous change.
2001-08-27 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 2001-08-27 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* ansidecl.h (VA_OPEN, VA_CLOSE): Allow multiple uses. * ansidecl.h (VA_OPEN, VA_CLOSE): Allow multiple uses.
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...@@ -93,11 +93,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ ...@@ -93,11 +93,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
You can declare variables either before or after the VA_OPEN, You can declare variables either before or after the VA_OPEN,
VA_FIXEDARG sequence. You can _not_ put statements before VA_OPEN. VA_FIXEDARG sequence. Also, VA_OPEN and VA_CLOSE are the beginning
Also, VA_OPEN and VA_CLOSE are the beginning and end of a block. and end of a block. They must appear at the same nesting level,
They must appear at the same nesting level, and any variables and any variables declared after VA_OPEN go out of scope at
declared after VA_OPEN go out of scope at VA_CLOSE. Unfortunately, VA_CLOSE. Unfortunately, with a K+R compiler, that includes the
with a K+R compiler, that includes the argument list. argument list. You can have multiple instances of VA_OPEN/VA_CLOSE
pairs in a single function in case you need to traverse the
argument list more than once.
For ease of writing code which uses GCC extensions but needs to be For ease of writing code which uses GCC extensions but needs to be
portable to other compilers, we provide the GCC_VERSION macro that portable to other compilers, we provide the GCC_VERSION macro that
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