Oracle® Objects for OLE C++ Class Library Developer's Guide 10g Release 2 (10.2) B14308-01 |
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Applies To
Description
OValue constructor
Usage
OValue(void)
OValue(const OValue &otherval)
OValue(int val)
OValue(long val)
OValue(double val)
OValue(const char *val)
OValue(const OBlob &val)
OValue(const OClob &val)
OValue(const OBfile &val)
OValue(const OObject &val)
OValue(const ORef &val)
OValue(const OCollection &val)
OValue(const OMetaData &val)
Arguments
Arguments |
Description |
---|---|
otherval |
Another OValue object whose value you are copying. |
val |
A value that you are placing into the OValue. |
Remarks
These methods construct OValue objects.
The default constructor method constructs an OValue with a value of NULL.
The copy constructor copies the value of the other OValue object. The copy constructor can fail, in which case the constructed OValue has a value of NULL.
The rest of the constructors allow the OValue to be initialized with values of various types. The initialization with a string value can fail (because of memory allocation failure), in which case the OValue has a value of NULL.
Example
Construct several OValues:
OValue str45("45"); OValue int45(45); OValue long45(45L); OValue double45(45.0); OValue val45(str45); OValue valnull; // str45, int45, long45, double45 and val45 are all equal according to operator==