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configure.in
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2016-01-14
2016-01-14 17:02:44 by Martin Nilsson <nilsson@fastmail.com>
92e45446bce053d7eac37c634a9037ea0f5c28dd (
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8.1
isnan is part of C99. Assume it exists unless we know it does not.
4439:
fpclass \ fp_class_d \ isinf \
-
isnan \
+
_
isnan \
iszero \ _finite \ signbit \
4661:
exit(!(isinf(pinf)>0 && isinf(ninf)<0 && isnan(nan))); ]) #############################################################################
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MY_CHECK_FUNCTION(_isnan,
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[
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#include <float.h>
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], [
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exit(_isnan(0.0));
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])
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#############################################################################
+
# isfinite() is a macro on at least OS X and Linux which doesn't play well # with AC_CHECK_FUNCS(). MY_CHECK_FUNCTION(isfinite,