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guile/doc/ref/new-docstrings.texi

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@c module-for-docstring (guile)
@c This one crops up here constantly although it is already
@c in api-data.texi. Have to investigate somewhen.
@deffn {Scheme Procedure} inf? x
@deffnx {C Function} scm_inf_p (x)
Return @code{#t} if @var{x} is either @samp{+inf.0}
or @samp{-inf.0}, @code{#f} otherwise.
@end deffn