Reference number of the data object assigned the label
label_buf
OUT:
Buffer for the label
buf_len
IN:
Size of the buffer allocated for the label
Purpose
Reads the label assigned to the data object identified by the given tag and reference number.
Return value
Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
Description
The parameter buf_len specifies the storage space available for the label. The length of buf_len must account for the null termination character appended to the annotation.
FORTRAN
integer function daglab(filename, tag, ref, label_buf, buf_len)