Hi Andrew,
> I've tidied up the existing isnan support and added isinf as well. This
> needs testing, particularly on windows / other non-linux platforms.
>
>
The addition of isinf leads to warnings for MinGW
In file included from Z:/DevZone/PLdev/plplot/include/plplotP.h:186,
from Z:\DevZone\PLdev\plplot\src\plbox.c:25:
Z:/DevZone/PLdev/plplot/include/plplot.h:198:1: warning: "isinf" redefined
In file included from Z:/DevZone/PLdev/plplot/include/plplotP.h:111,
from Z:\DevZone\PLdev\plplot\src\plbox.c:25:
C:/DevZone/MinGW-3.4.5/bin/../lib/gcc/mingw32/3.4.5/../../../../include/math.h:330:1:
warning: this is the location of the previous
definition
The problem is, that we check if the function isinf() exits in
plplot.cmake, but isinf is actually not a (real) function, but a macro
defined in math.h
#define isinf(x) (fpclassify(x) == FP_INFINITE)
so isinf isn't found in any library.
include(CheckSymbolExists)
check_symbol_exists(isinf math.h HAVE_ISINF)
works though. Is anybody against such a change?
Regards,
Werner
--
Dr. Werner Smekal
Institut fuer Allgemeine Physik
Technische Universitaet Wien
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email: [email protected]
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