source:
proiecte/swift/trunk/lib/hoard-371/src/exactlyone.h
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1 | #ifndef _EXACTLYONE_H_ |
2 | #define _EXACTLYONE_H_ |
3 | |
4 | /** |
5 | * @class ExactlyOne |
6 | * @brief Creates a singleton of type CLASS, accessed through (). |
7 | * @author Emery Berger <http://www.cs.umass.edu/~emery> |
8 | */ |
9 | |
10 | namespace Hoard { |
11 | |
12 | template <class CLASS> |
13 | class ExactlyOne { |
14 | public: |
15 | |
16 | inline CLASS& operator() (void) { |
17 | static CLASS theOneTrueInstance; |
18 | return theOneTrueInstance; |
19 | } |
20 | |
21 | }; |
22 | |
23 | }; |
24 | |
25 | #endif |
26 |
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