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MQL5 ReferenceStandard LibraryGeneric Data CollectionsIMap<TKey,TValue>CopyTo 

CopyTo

Copies all key/value pairs from a collection to the specified arrays, starting at the specified index.

int CopyTo(
   TKey&      dst_keys[],       // an array for writing keys
   TValue&    dst_values[],     // an array for writing values
   const int  dst_start=0       // the starting index for writing
   );

Parameters

&dst_keys[]

[out] An array to which all keys from the collection will be written.

&dst_values[]

[out] An array to which values of corresponding keys from the collection will be written.

dst_start=0

[in] An index in the array from which copying starts.

Return Value

Returns the number of copied key/value pairs.