calls to different libraries

math.cpp

class Matrix4
{
  mult(const Matrix4& other) {
#if defined(CC_PLATFORM_IOS) || defined(CC_PLATFORM_MAC)
     GLKMatrix4Multiply(...);
     
#elif defined(CC_PLATFORM_ANDROID) && defined(__ARMV7__)
     // Use ne10 library
     ne10XXXXX();
     
#elif defined(__ARMV7__)
     // ARMv7 defined, but not Android.
    neon_matrix4_multiply(....);

#else
    c_matrix4_multiply(...);

#endif
  }
private:
  float values[16];
}