C++ Library containing a lot of needful things: Stack Trace, Command Line Parser, Resource Handling, Configuration Files, Unix Command Execution, Directories, Regular Expressions, Tokenizer, Function Trace, Standard Extensions.

93 lines
2.4 KiB

21 years ago
/** @file
$Id$
$Date$
$Author$
@copy © Marc Wäckerlin
@license LGPL, see file <a href="license.html">COPYING</a>
$Log$
Revision 1.3 2005/04/07 20:48:20 marc
docu: new doxygen, new grouping
Revision 1.2 2004/12/20 07:40:36 marc
documentation improved, new grouping
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Revision 1.1 2004/10/07 09:31:30 marc
new feature
*/
#ifndef __MRW__MULTIMAP__HPP__
#define __MRW__MULTIMAP__HPP__
#include <map>
#include <mrw/exception.hpp>
#include <mrw/string.hpp>
/** @addtogroup StdExtSTL
*/
//@{
/** @defgroup StdExtmultimap multimap
*/
//@{
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/** @brief insert a value in a multimap
@code
std::multimap<int, std::string> test;
test<<std::make_pair(1, std::string("one"))
<<std::make_pair(2, std::string("two"));
@endcode
@throw mrw::invalid_argument, if element is already in multimap
@param l a multimap of values
@param o a value to be inserted into multimap @c l
@pre #include <mrw/multimap.hpp>
*/
template <typename K, typename T, class C, typename A>
std::multimap<K, T, C, A>& operator<<(std::multimap<K, T, C, A>& l, const std::pair<K, T>& o)
throw(std::bad_exception) {
l.insert(o);
return l;
}
/** @brief extract the first value of a multimap
@code
std::multimap<int, std::string> test;
test<<std::make_pair(1, std::string("one"))
<<std::make_pair(2, std::string("two"));
std::pair<int, std::string> i1, i2;
test>>i1>>i2;
// now: i1==(1, "one") i2==(2, "two") test=={}
@endcode
@param l a multimap of values
@param o a value to be extracted from multimap @c l
@throw mrw::length_error, if multimap was empty on entry
@note when something is extracted from a multimap, it is removed
from the multimap, that means after every shift the multimap is
shortened by the shifted element
@pre #include <mrw/multimap.hpp>
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*/
template <typename K, typename T, class C, typename A>
std::multimap<K, T, C, A>& operator>>(std::multimap<K, T, C, A>& l, std::pair<K, T>& o)
throw(std::exception) {
typename std::multimap<K, T, C, A>::iterator it(l.begin());
if (it==l.end())
throw mrw::length_error(std::string(__FILE__ ":")+__LINE__+
": std::multimap<>& operator>>(std::multimap<>&, T&),"
" multimap is empty");
o = *it;
l.erase(it);
return l;
}
//@}
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//@}
#endif