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#include <filehdr.h> #include <syms.h> #include <ldfcn.h>long ldtbindex (ldptr) LDFILE *ldptr;
The index returned by ldtbindex may be used in subsequent calls to ldtbread(S). However, since ldtbindex returns the index of the symbol table entry that begins at the current position of the object file, if ldtbindex is called immediately after a particular symbol table entry has been read, it returns the index of the next entry.
The ldtbindex function fails 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.
Note that the first symbol in the symbol table has an index of zero.