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5 Commits
boost-1.49
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boost-1.33
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876ccab92a | ||
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b179f44d79 | ||
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dff0529ad5 | ||
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72c5cc395a | ||
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9945f4e158 |
@@ -34,55 +34,61 @@ namespace detail
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inline void atomic_increment( register long * pw )
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{
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register int a;
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asm
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{
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loop:
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lwarx r4, 0, r3
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addi r4, r4, 1
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stwcx. r4, 0, r3
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lwarx a, 0, pw
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addi a, a, 1
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stwcx. a, 0, pw
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bne- loop
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}
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}
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inline long atomic_decrement( register long * pw )
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{
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register int a;
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asm
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{
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sync
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loop:
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lwarx r4, 0, r3
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addi r4, r4, -1
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stwcx. r4, 0, r3
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lwarx a, 0, pw
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addi a, a, -1
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stwcx. a, 0, pw
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bne- loop
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mr r3, r4
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isync
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}
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return a;
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}
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inline long atomic_conditional_increment( register long * pw )
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{
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register int a;
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asm
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{
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loop:
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lwarx r4, 0, r3
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cmpwi r4, 0
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lwarx a, 0, pw
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cmpwi a, 0
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beq store
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addi r4, r4, 1
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addi a, a, 1
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store:
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stwcx. r4, 0, r3
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stwcx. a, 0, pw
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bne- loop
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mr r3, r4
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}
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return a;
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}
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class sp_counted_base
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@@ -32,11 +32,11 @@ namespace boost
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namespace detail
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{
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inline void atomic_increment( long * pw )
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inline void atomic_increment( int * pw )
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{
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// ++*pw;
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long tmp;
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int tmp;
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__asm__
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(
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@@ -52,11 +52,11 @@ inline void atomic_increment( long * pw )
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);
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}
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inline long atomic_decrement( long * pw )
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inline int atomic_decrement( int * pw )
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{
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// return --*pw;
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long rv;
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int rv;
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__asm__ __volatile__
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(
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@@ -76,12 +76,12 @@ inline long atomic_decrement( long * pw )
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return rv;
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}
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inline long atomic_conditional_increment( long * pw )
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inline int atomic_conditional_increment( int * pw )
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{
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// if( *pw != 0 ) ++*pw;
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// return *pw;
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long rv;
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int rv;
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__asm__
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(
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@@ -109,8 +109,8 @@ private:
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sp_counted_base( sp_counted_base const & );
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sp_counted_base & operator= ( sp_counted_base const & );
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long use_count_; // #shared
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long weak_count_; // #weak + (#shared != 0)
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int use_count_; // #shared
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int weak_count_; // #weak + (#shared != 0)
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public:
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@@ -170,7 +170,7 @@ public:
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long use_count() const // nothrow
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{
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return static_cast<long const volatile &>( use_count_ );
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return static_cast<int const volatile &>( use_count_ );
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}
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};
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@@ -621,7 +621,7 @@ p3.reset(new int(2)); // undefined, multiple writes
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day a highly configurable smart pointer may be invented that is also very easy
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to use and very hard to misuse. Until then, <B>shared_ptr</B> is the smart
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pointer of choice for a wide range of applications. (Those interested in policy
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based smart pointers should read <A href="http://cseng.aw.com/book/0,,0201704315,00.html">
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based smart pointers should read <A href="http://www.awprofessional.com/bookstore/product.asp?isbn=0201704315&rl=1">
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Modern C++ Design</A> by Andrei Alexandrescu.)<BR>
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</P>
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<P><B>Q.</B> I am not convinced. Default parameters can be used where appropriate
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