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support for exception_ptr and nesting in boost::diagnostic_information

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documentation update

[SVN r53038]
This commit is contained in:
Emil Dotchevski
2009-05-15 22:34:30 +00:00
parent 15c0ff6130
commit 1643ad2e81
9 changed files with 4500 additions and 4358 deletions
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47
include/boost/exception_ptr.hpp
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@ -12,6 +12,7 @@
#endif
#include <boost/exception/exception.hpp>
#include <boost/exception/info.hpp>
#include <boost/exception/diagnostic_information.hpp>
#include <boost/exception/detail/type_info.hpp>
#include <boost/shared_ptr.hpp>
#include <stdexcept>
@ -37,7 +38,8 @@ boost
void rethrow_exception( exception_ptr const & );
class
exception_ptr
exception_ptr:
public exception_detail::exception_ptr_base
{
typedef bool exception_ptr::*unspecified_bool_type;
friend exception_ptr current_exception();
@ -65,6 +67,22 @@ boost
BOOST_ASSERT(c);
}
void
_rethrow() const
{
BOOST_ASSERT(*this);
if( bad_alloc_ )
throw enable_current_exception(std::bad_alloc());
else
c_->rethrow();
}
bool
_empty() const
{
return !bad_alloc_ && !c_;
}
public:
exception_ptr():
@ -74,7 +92,7 @@ boost
operator unspecified_bool_type() const
{
return (bad_alloc_ || c_) ? &exception_ptr::bad_alloc_ : 0;
return _empty() ? 0 : &exception_ptr::bad_alloc_;
}
friend
@ -417,11 +435,26 @@ boost
void
rethrow_exception( exception_ptr const & p )
{
BOOST_ASSERT(p);
if( p.bad_alloc_ )
throw enable_current_exception(std::bad_alloc());
else
p.c_->rethrow();
p._rethrow();
}
inline
std::string
to_string( exception_ptr const & p )
{
std::string s='\n'+diagnostic_information(p);
std::string padding(" ");
std::string r;
bool f=false;
for( std::string::const_iterator i=s.begin(),e=s.end(); i!=e; ++i )
{
if( f )
r+=padding;
char c=*i;
r+=c;
f=(c=='\n');
}
return r;
}
}