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From: Florian Weimer <fw@s.netic.de>
Subject: Re: Problem with pragmas
Date: 1999/06/30
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robsch@robkaos.ruhr.de (Robert Schien) writes:

> -- Accessing Gaussian error function
> function erf (x: in C_float) return C_float;
>    pragma Import(C,erf);

My manpage for erf(3) says that this function uses the `double' C type
(instead of `float').  I guess your example woll work if you replace
`C_Float' by `double'.