I get the following errors when trying to build a small and simple project that includes <cmath>
in Xcode:
cmath: '*' has not been declared
'::acos' has not been declared
In file included from /Xcode4/Projects/libraryLAFMath/Classes/libraryLAFMath.cp
In file included from /Xcode4/Projects/libraryLAFMath/Classes/libraryLAFMath.h
'::acos' has not been declared in /Xcode4/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.1.sdk/usr/include/c++/4.2.1/cmath
...
The error log complains about all the other math functions as well, sin
, pow
, etc, not just acos
. I looked inside cmath
source code and it references the globally defined corresponding math functions from math.h
, ie ::acos
etc. Since the root error complains about the non-existance of ::acos
one would assume that math.h
can't be found, but a) it exists, and b) I'd get a different error complaining that math.h can't be found.
The source code is as follows:
libraryLAFMath.cp:
#include "libraryLAFMath.h"
libraryLAFMath.h:
#include <cmath>
struct libraryLAFMath {
void test() {
double a = std::acos(0);
}
};
Now, I have another project from an outside source that uses cmath
and compiles fine. I tried comparing build settings between these two projects but they are pretty much the same. I am using LLVM GCC 4.2 compiler, but get similar result when using GCC 4.2, so it's not a compiler settings issue I believe.
I'm new to Xcode development and any help is appreciated.