ldtbindex - compute the index of a symbol table entry of a common object
long ldtbindex (ldptr)
ldtbindex returns the (long) index of the symbol table entry at the
current position of the common object file associated with ldptr.
The index returned by ldtbindex can be used in later calls to
ldtbread(3X). ldtbindex returns the index of the last ldtbread.
If there are no symbols in the object file or if the object file is not
positioned at the beginning of a symbol table entry, ldtbindex fails and
returns BADINDEX (-1).
NOTE: The first symbol in the symbol table has an index of zero.
The program must be loaded with the object file access routine library
ldclose(3X), ldopen(3X), ldtbread(3X), ldtbseek(3X), ldfcn(4).
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