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Comparison |
long
and perform standard C-comparison between the two long integers. If PlTerm
cannot be converted a type_error
is raised.TRUE
if the PlTerm
is an atom or string representing the same text as the argument, FALSE
if the conversion was successful, but the strings are not equal and an
type_error
exception if the conversion failed.Below are some typical examples. See section 1.6 for direct manipulation of atoms in their internal representation.
A1 < 0 | Test A1 to hold a Prolog integer or float that can be transformed lossless to an integer less than zero. |
A1 < PlTerm(0) | A1
is before the term‘0’in the‘standard order of terms’.
This means that if A1 represents an atom, this test yields TRUE . |
A1 == PlCompound("a(1)") | Test A1
to represent the term
a(1) . |
A1 == "now" | Test A1 to be an atom or string holding the text “now” . |