r144:4e626dbbe408
Tue, 22 Apr 2008 13:50:52
[Not Reviewed]
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@@ -900,62 +900,69 @@ |
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// Additional utilities |
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/////////////////////////////////////////////////////////////////////// |
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namespace _path_bits {
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template <typename Path, typename Enable = void> |
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struct |
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struct RevPathTagIndicator {
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static const bool value = false; |
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}; |
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template <typename Digraph> |
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struct RevTagIndicator< |
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Digraph, |
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typename enable_if<typename Digraph::RevTag, void>::type |
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template <typename Path> |
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struct RevPathTagIndicator< |
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Path, |
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typename enable_if<typename Path::RevPathTag, void>::type |
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> {
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static const bool value = true; |
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}; |
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template <typename Path, typename Enable = void> |
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struct BuildTagIndicator {
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static const bool value = false; |
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}; |
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template <typename Path> |
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struct BuildTagIndicator< |
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Path, |
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typename enable_if<typename Path::BuildTag, void>::type |
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> {
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static const bool value = true; |
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}; |
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template <typename Target, typename Source, |
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bool buildEnable = BuildTagIndicator<Target>::value, |
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bool revEnable = RevPathTagIndicator<Source>::value> |
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struct PathCopySelector {
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static void copy(Target& target, const Source& source) {
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target.clear(); |
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for (typename Source::ArcIt it(source); it != INVALID; ++it) {
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target.addBack(it); |
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} |
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} |
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}; |
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template <typename Target, typename Source, typename BuildEnable> |
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struct PathCopySelector< |
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Target, Source, BuildEnable, |
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typename enable_if<typename Source::RevPathTag, void>::type> {
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template <typename Target, typename Source> |
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struct PathCopySelector<Target, Source, false, true> {
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static void copy(Target& target, const Source& source) {
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target.clear(); |
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for (typename Source::RevArcIt it(source); it != INVALID; ++it) {
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target.addFront(it); |
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} |
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} |
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}; |
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template <typename Target, typename Source, typename RevEnable> |
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struct PathCopySelector< |
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Target, Source, |
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typename enable_if<typename Target::BuildTag, void>::type, RevEnable> {
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template <typename Target, typename Source> |
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struct PathCopySelector<Target, Source, true, false> {
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static void copy(Target& target, const Source& source) {
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target.clear(); |
| 947 | 957 |
target.build(source); |
| 948 | 958 |
} |
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}; |
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template <typename Target, typename Source> |
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struct PathCopySelector< |
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Target, Source, |
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typename enable_if<typename Target::BuildTag, void>::type, |
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typename enable_if<typename Source::RevPathTag, void>::type> {
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struct PathCopySelector<Target, Source, true, true> {
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static void copy(Target& target, const Source& source) {
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target.clear(); |
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target.buildRev(source); |
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} |
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}; |
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