On 09/01/2005, at 9:11 AM, Thomas Lumley wrote:
The C++ math header undefines isnan, so if isnan is a macro, ISNAN()
will not work in C++ code.
C99 specifies that isnan is a macro, but in C90 compilers, where it is
an extension, isnan is often a function (explaining why the issue
didn't come up earlier). For example, isnan is a macro on my Mac
laptop but a function on my Linux desktop.
R-devel now defines ISNAN to call a function if used in C++ code. It
still calls isnan in C code.
Many thanks for that.
Does this mean the changes will be in the current daily builds?
I presume the function involved is now in the standalone Rmath build.
Bill Northcott
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