Read-only view of a map of Datum values keyed by strings.
Declared in <bdld_datum.h>
class DatumMapRef;This class provides a read-only view to a map of datums (an array of DatumMapEntry objects). It holds the array by a const pointer and an integral size value. It acts as return value for accessors inside the Datum class that return a map of Datum objects. Note that zero-size maps are valid.
| Name | Description |
|---|---|
SizeType | Unsigned integral type for capacities, key sizes, and string lengths. |
const_iterator | Const iterator for this map reference. |
const_pointer | Const pointer to a map entry. |
const_reference | Const reference to a map entry. |
const_reverse_iterator | Const reverse iterator for this map reference. |
difference_type | Iterator difference type for this map reference. |
element_type | This typedef is an alias for element_type. |
iterator | Iterator for this map reference. |
pointer | Pointer to a map entry. |
reference | Reference to a map entry. |
reverse_iterator | Reverse iterator for this map reference. |
size_type | Size type for this map reference. |
value_type | Value type for this map reference. |
| Name | Description |
|---|---|
DatumMapRef [constructor] | Create a read-only view of the specified datum map. |
back | Return a reference providing non-modifiable access to the last element of the map this reference object represents. The behavior is undefined unless size() > 0. |
begin | Return an iterator to the first map entry. |
cbegin | Return an iterator to the first entry of this map. |
cend | Return an iterator providing non-modifiable access pointing past-the-end of the array this reference object represents. |
crbegin | Return a reverse iterator to the last entry of this map. |
crend | Return a reverse iterator providing non-modifiable access pointing past-the-end of the array this reference object represents. |
data | Return a pointer to the first entry of this map. |
empty | Return size() == 0. |
end | Return a past-the-end iterator for this map reference. |
find | Return a pointer to the datum with the specified key, or null. |
front | Return a reference to the first entry of this map. |
isSorted | Return true if underlying map is sorted and false otherwise. |
operator[] | Return a reference to the map entry at the specified position. |
ownsKeys | Return true if underlying map owns the keys and false otherwise. Note that false is always returned for zero-sized DatumMapRef. |
print | Format this object to the specified output stream. |
rbegin | Return a reverse iterator to the last map entry. |
rend | Return a past-the-end reverse iterator for this map reference. |
size | Return a const-pointer to the number of elements of the map this reference object represents. |
operator BloombergLP::bslmf::NestedTraitDeclaration<DatumMapRef, HasPrintMethod> | DatumMapRef is trivially copyable. |
| Name | Description |
|---|---|
operator!= | Return whether lhs and rhs have different values. |
operator== | Return whether lhs and rhs have the same value. |