GetC0Value

Function Description

Parses c0 format information from the actual format.

Function Prototype

inline int64_t GetC0Value(int32_t format)

Parameters

Parameter	Input/Output	Description
format	Input	Actual format. (4-byte long. The higher 4 bits of the first byte are reserved, and the lower 4 bits are c0 format. The second and third bytes describe the sub-format, and the fourth byte describes the primary format.)

Return Value

If c0 format is contained, the value of c0 format is returned.
If c0 format is not contained, -1 is returned.

Exception Handling

None

Restrictions

For the setting of actual format, the c0 format value x for the lower 4 bits of the first byte ranges from 0001 to 1111, and the actual c0 format value is 2^x-1.