Error on compiling

gistfile1.txt

00:02:11 **** Incremental Build of configuration Default for project PenGoPaint ****
/Users/toan/androiddev/android-ndk-r10/ndk-build all 
[armeabi] Compile++ thumb: pengo_ndk <= CurveDrawing.cpp
In file included from jni/CurveDrawing.h:2:0,
                 from jni/CurveDrawing.cpp:1:
jni/Spline.h:28:2: error: 'size_t' does not name a type
  size_t getNumPoints() const;
  ^
In file included from jni/Spline.h:37:0,
                 from jni/CurveDrawing.h:2,
                 from jni/CurveDrawing.cpp:1:
jni/SplineInline.h:216:1: error: 'size_t' does not name a type
 size_t Spline<T>::getNumPoints() const
 ^
In file included from jni/CurveDrawing.cpp:1:0:
jni/CurveDrawing.h:25:37: error: 'size_t' has not been declared
  int renderBrushes(Vector4 *points, size_t numPoints);
                                     ^
jni/CurveDrawing.cpp: In member function 'void CurveRenderer::endRendering()':
jni/CurveDrawing.cpp:159:35: error: 'Spline4' has no member named 'getNumPoints'
  int numPoints = mSmoothingSpline.getNumPoints();
                                   ^
jni/CurveDrawing.cpp: In member function 'void CurveRenderer::renderPoint(float, float, float, long int, float)':
jni/CurveDrawing.cpp:413:36: error: 'Spline4' has no member named 'getNumPoints'
   int numPoints = mSmoothingSpline.getNumPoints();
                                    ^
jni/CurveDrawing.cpp: At global scope:
jni/CurveDrawing.cpp:575:5: error: prototype for 'int CurveRenderer::renderBrushes(Vector4*, size_t)' does not match any in class 'CurveRenderer'
 int CurveRenderer::renderBrushes(Vector4 *points, size_t numPoints)
     ^
In file included from jni/CurveDrawing.cpp:1:0:
jni/CurveDrawing.h:25:6: error: candidates are: int CurveRenderer::renderBrushes(Vector4*, int)
  int renderBrushes(Vector4 *points, size_t numPoints);
      ^
jni/CurveDrawing.cpp:558:5: error:                 int CurveRenderer::renderBrushes()
 int CurveRenderer::renderBrushes()
     ^
jni/CurveDrawing.cpp: In function 'jint Java_com_scopic_pengo_graphic_renderer_controller_CurveController_nativeGetNumSplinePts(JNIEnv*, jobject)':
jni/CurveDrawing.cpp:777:57: error: 'const Spline4' has no member named 'getNumPoints'
  return CurveRenderer::instance()->getSmoothingSpline().getNumPoints();
                                                         ^
make: *** [obj/local/armeabi/objs/pengo_ndk/CurveDrawing.o] Error 1

00:02:11 Build Finished (took 745ms)