mi_integer mi_streamread_real(strm_desc, real_dptr)
   MI_STREAM *strm_desc;
   mi_real **real_dptr;

strm_desc

is a pointer to the stream descriptor for the open stream from which to read the mi_real value.

real_dptr

is a pointer to the buffer into which to copy the address of the mi_real value.

Valid in Client LIBMI Application?	Valid in User-Defined Routine?
No	Yes

The mi_streamread_real( ) function reads an mi_real value from the stream that strm_desc references. The function reads the mi_real value from the stream and puts the address of the value in the buffer that *real_dptr references. The read operation begins at the current stream seek position. You can use mi_stream_tell( ) or mi_stream_getpos( ) to obtain this seek position.

When *real_dptr points to NULL, mi_streamread_real( ) allocates the memory for the buffer in the current memory duration. Otherwise, the function assumes that you have allocated the memory that *real_dptr references.

The mi_streamread_real( ) function is useful in a streamread( ) support function of an opaque data type that contains an mi_real value.

>=0

is the actual number of bytes that the function has read from the open stream to the value that real_dptr references.

MI_STREAM_EEOF

indicates that the end of the stream has been reached without any errors.

MI_STREAM_EBADARG

indicates that the stream descriptor that strm_desc references or the value that real_dptr references is invalid.

MI_ERROR

indicates that the function was not successful.

See also the descriptions of mi_stream_getpos( ), mi_stream_read( ), mi_stream_tell( ), and mi_streamwrite_real( ).

For more information on the use of mi_streamread_real( ) in a streamread( ) support function, see the IBM Informix: DataBlade API Programmer's Guide.