[Boost-commit] svn:boost r62436 - sandbox/SOC/2010/bits_and_ints/boost/integer

Subject: [Boost-commit] svn:boost r62436 - sandbox/SOC/2010/bits_and_ints/boost/integer
From: muriloufg_at_[hidden]
Date: 2010-06-04 19:27:31

Author: murilov
Date: 2010-06-04 19:27:30 EDT (Fri, 04 Jun 2010)
New Revision: 62436
URL: http://svn.boost.org/trac/boost/changeset/62436

Log:
Added some comments in sign.hpp
Text files modified: 
   sandbox/SOC/2010/bits_and_ints/boost/integer/sign.hpp |     9 +++++++++                               
   1 files changed, 9 insertions(+), 0 deletions(-)

Modified: sandbox/SOC/2010/bits_and_ints/boost/integer/sign.hpp
==============================================================================
--- sandbox/SOC/2010/bits_and_ints/boost/integer/sign.hpp	(original)
+++ sandbox/SOC/2010/bits_and_ints/boost/integer/sign.hpp	2010-06-04 19:27:30 EDT (Fri, 04 Jun 2010)
@@ -18,6 +18,11 @@
 namespace boost
 {
 
+
+/*
+ *	If T is the type of data  and T is a signed type, 
+ *	sign(data) will call this function.
+ */
 template <typename T>
 inline typename enable_if<is_signed<T>, int>::type
 sign(T data)
@@ -36,10 +41,14 @@
         return is_negative | is_positive;
 }
 
+/*
+ *	If T is unsigned, this function will be called.
+ */
 template <typename T>
 inline typename enable_if<is_unsigned<T>, int>::type
 sign(T data)
 {
+	// Just return 0 if data = 0 or 1 otherwise
         return int(!!data);
 }