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@@ -45,10 +45,69 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef __AI_METADATA_H_INC__
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#ifndef __AI_METADATA_H_INC__
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#define __AI_METADATA_H_INC__
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#define __AI_METADATA_H_INC__
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+#include <assert.h>
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+#include <stdint.h>
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+
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+
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+
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+// -------------------------------------------------------------------------------
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+/**
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+ * Enum used to distinguish data types
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+ */
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+ // -------------------------------------------------------------------------------
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+enum aiMetadataType
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+{
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+ AI_BOOL = 0,
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+ AI_INT = 1,
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+ AI_UINT64 = 2,
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+ AI_FLOAT = 3,
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+ AI_AISTRING = 4,
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+ AI_AIVECTOR3D = 5,
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+
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+ FORCE_32BIT = INT_MAX
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+};
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+
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+
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+
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+// -------------------------------------------------------------------------------
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+/**
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+ * Metadata entry
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+ *
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+ * The type field uniquely identifies the underlying type of the data field
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+ */
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+ // -------------------------------------------------------------------------------
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+struct aiMetadataEntry
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+{
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+ aiMetadataType mType;
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+ void* mData;
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+};
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+
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+
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+
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#ifdef __cplusplus
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#ifdef __cplusplus
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-extern "C" {
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+
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+#include <string>
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+
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+
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+
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+// -------------------------------------------------------------------------------
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+/**
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+ * Helper functions to get the aiType enum entry for a type
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+ */
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+ // -------------------------------------------------------------------------------
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+inline aiMetadataType GetAiType( bool ) { return AI_BOOL; }
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+inline aiMetadataType GetAiType( int ) { return AI_INT; }
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+inline aiMetadataType GetAiType( uint64_t ) { return AI_UINT64; }
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+inline aiMetadataType GetAiType( float ) { return AI_FLOAT; }
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+inline aiMetadataType GetAiType( aiString ) { return AI_AISTRING; }
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+inline aiMetadataType GetAiType( aiVector3D ) { return AI_AIVECTOR3D; }
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+
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+
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+
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#endif
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#endif
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+
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+
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// -------------------------------------------------------------------------------
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// -------------------------------------------------------------------------------
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/**
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/**
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* Container for holding metadata.
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* Container for holding metadata.
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@@ -66,18 +125,17 @@ struct aiMetadata
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/** Arrays of values, may not be NULL. Entries in this array may be NULL if the
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/** Arrays of values, may not be NULL. Entries in this array may be NULL if the
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* corresponding property key has no assigned value. */
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* corresponding property key has no assigned value. */
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- C_STRUCT aiString* mValues;
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+ C_STRUCT aiMetadataEntry* mValues;
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#ifdef __cplusplus
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#ifdef __cplusplus
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/** Constructor */
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/** Constructor */
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aiMetadata()
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aiMetadata()
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- {
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// set all members to zero by default
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// set all members to zero by default
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- mKeys = NULL;
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- mValues = NULL;
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- mNumProperties = 0;
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- }
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+ : mNumProperties(0)
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+ , mKeys(NULL)
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+ , mValues(NULL)
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+ {}
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/** Destructor */
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/** Destructor */
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@@ -86,27 +144,94 @@ struct aiMetadata
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if (mKeys)
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if (mKeys)
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delete [] mKeys;
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delete [] mKeys;
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if (mValues)
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if (mValues)
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+ {
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+ // Delete each metadata entry
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+ for (unsigned i=0; i<mNumProperties; ++i)
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+ {
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+ void* data = mValues[i].mData;
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+ switch (mValues[i].mType)
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+ {
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+ case AI_BOOL:
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+ delete static_cast<bool*>(data);
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+ break;
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+ case AI_INT:
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+ delete static_cast<int*>(data);
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+ break;
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+ case AI_UINT64:
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+ delete static_cast<uint64_t*>(data);
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+ break;
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+ case AI_FLOAT:
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+ delete static_cast<float*>(data);
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+ break;
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+ case AI_AISTRING:
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+ delete static_cast<aiString*>(data);
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+ break;
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+ case AI_AIVECTOR3D:
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+ delete static_cast<aiVector3D*>(data);
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+ break;
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+ default:
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+ assert(false);
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+ break;
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+ }
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+ }
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+
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+ // Delete the metadata array
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delete [] mValues;
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delete [] mValues;
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+ }
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+
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}
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}
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- inline bool Get(const aiString& key, aiString& value)
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+
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+ template<typename T>
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+ inline void Set( unsigned index, const std::string& key, const T& value )
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{
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{
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- for (unsigned i=0; i<mNumProperties; ++i) {
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- if (mKeys[i]==key) {
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- value=mValues[i];
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- return true;
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- }
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- }
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+ // In range assertion
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+ assert(index < mNumProperties);
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+
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+ // Set metadata key
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+ mKeys[index] = key;
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+
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+ // Set metadata type
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+ mValues[index].mType = GetAiType(value);
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+ // Copy the given value to the dynamic storage
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+ mValues[index].mData = new T(value);
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+ }
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+
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+ template<typename T>
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+ inline bool Get( unsigned index, T& value )
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+ {
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+ // In range assertion
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+ assert(index < mNumProperties);
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+
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+ // Return false if the output data type does
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+ // not match the found value's data type
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+ if (GetAiType(value) != mValues[index].mType)
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+ return false;
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+
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+ // Otherwise, output the found value and
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+ // return true
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+ value = *static_cast<T*>(mValues[index].mData);
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+ return true;
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+ }
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+
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+ template<typename T>
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+ inline bool Get( const aiString& key, T& value )
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+ {
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+ // Search for the given key
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+ for (unsigned i=0; i<mNumProperties; ++i)
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+ if (mKeys[i]==key)
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+ return Get(i, value);
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return false;
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return false;
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}
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}
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+
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+ template<typename T>
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+ inline bool Get( const std::string& key, T& value )
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+ { return Get(aiString(key), value); }
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+
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#endif // __cplusplus
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#endif // __cplusplus
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};
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};
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-#ifdef __cplusplus
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-} //extern "C" {
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-#endif
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-
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#endif // __AI_METADATA_H_INC__
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#endif // __AI_METADATA_H_INC__
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