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Home » Language IDEs » C / C++ IDE (CDT) » CDT 8.0 not finding functions from math.h(Function '__signbitl' could not be resolved)

CDT 8.0 not finding functions from math.h [message #721067]

Wed, 31 August 2011 16:04

Eclipse User

I have some classes that use the signbit(x) function. When CDT parses them it gives an error:

Function '__signbitl' could not be resolved

When I press F3 it is able to find the definition of signbit in math.h but it looks like it is not able to find __signbitl which is used there. Same problem with isfinite().

/* Return nonzero value if sign of X is negative.  */
# ifdef __NO_LONG_DOUBLE_MATH
#  define signbit(x) \
     (sizeof (x) == sizeof (float) ? __signbitf (x) : __signbit (x))
# else
#  define signbit(x) \
     (sizeof (x) == sizeof (float)					      \
      ? __signbitf (x)							      \
      : sizeof (x) == sizeof (double)					      \
      ? __signbit (x) : __signbitl (x))
# endif

This is CDT 8.0 with Eclipse 3.7

[Updated on: Wed, 31 August 2011 16:06] by Moderator

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