fixed several gcc 4.1 warnings

modules/flann/include/opencv2/flann/general.h

@@ -124,6 +124,7 @@ protected:
 	IndexParams(flann_algorithm_t algorithm_) : algorithm(algorithm_) {};
 	
 public:
+	virtual ~IndexParams() {}
 	virtual flann_algorithm_t getIndexType() const = 0;
 
 	virtual void print() const = 0;

modules/imgproc/src/approx.cpp

@@ -591,7 +591,7 @@ icvApproxPolyDP( CvSeq* src_contour, int header_size,
             for( i = slice.start_index + 1; i < slice.end_index; i++ )
             {
                 CV_READ_SEQ_ELEM( pt, reader );
-                dist = abs((pt.y - start_pt.y) * dx - (pt.x - start_pt.x) * dy);
+                dist = fabs((pt.y - start_pt.y) * dx - (pt.x - start_pt.x) * dy);
 
                 if( dist > max_dist )
                 {
@@ -647,7 +647,7 @@ icvApproxPolyDP( CvSeq* src_contour, int header_size,
 
         dx = end_pt.x - start_pt.x;
         dy = end_pt.y - start_pt.y;
-        dist = abs((pt.x - start_pt.x)*dy - (pt.y - start_pt.y)*dx);
+        dist = fabs((pt.x - start_pt.x)*dy - (pt.y - start_pt.y)*dx);
         if( dist * dist <= 0.5*eps*(dx*dx + dy*dy) && dx != 0 && dy != 0 )
         {
             new_count--;

modules/objdetect/src/_latentsvm.h

@@ -2,8 +2,8 @@
 /*                      Latent SVM prediction API                            */
 /*****************************************************************************/
 
-#ifndef SVM_LATENTSVM
-#define SVM_LATENTSVM
+#ifndef _LATENTSVM_H_
+#define _LATENTSVM_H_
 
 #include <stdio.h>
 #include "_lsvm_types.h"

modules/objdetect/src/_lsvm_distancetransform.h

-#ifndef LSVM_DIST_TRANSFORM
-#define LSVM_DIST_TRANSFORM
+#ifndef _LSVM_DIST_TRANSFORM_H_
+#define _LSVM_DIST_TRANSFORM_H_
 
 #include "_lsvm_types.h"
 #include "_lsvm_error.h"

modules/objdetect/src/_lsvm_fft.h

-#ifndef _LSVM_FFT_H
-#define _LSVM_FFT_H
+#ifndef _LSVM_FFT_H_
+#define _LSVM_FFT_H_
 
 #include "_lsvm_types.h"
 #include "_lsvm_error.h"

modules/objdetect/src/_lsvm_matching.h

@@ -2,8 +2,8 @@
 /*                      Matching procedure API                               */
 /*****************************************************************************/
 //
-#ifndef SVM_MATCHING
-#define SVM_MATCHING
+#ifndef _LSVM_MATCHING_H_
+#define _LSVM_MATCHING_H_
 
 #include "_latentsvm.h"
 #include "_lsvm_error.h"

modules/objdetect/src/_lsvm_resizeimg.h

-#ifndef RESIZEIMG
-#define RESIZEIMG
+#ifndef _LSVM_RESIZEIMG_H_
+#define _LSVM_RESIZEIMG_H_
 
 #include "_lsvm_types.h"
 

modules/objdetect/src/_lsvm_routine.h

-#ifndef _LSVM_ROUTINE_H
-#define _LSVM_ROUTINE_H
+#ifndef _LSVM_ROUTINE_H_
+#define _LSVM_ROUTINE_H_
 
 #include "_lsvm_types.h"
 #include "_lsvm_error.h"

modules/objdetect/src/distancetransform.cpp

@@ -7,6 +7,7 @@
 //      a(y - q1) + b(q1 - y)(q1 - y) + f[q1]
 //      a(y - q2) + b(q2 - y)(q2 - y) + f[q2]
 //
+//
 // API
 // int GetPointOfIntersection(const float *f, 
                               const float a, const float b,           

modules/objdetect/src/featurepyramid.cpp

@@ -10,7 +10,7 @@
 #define min(a,b)            (((a) < (b)) ? (a) : (b))
 #endif
 
-int sign(float r){
+static inline int sign(float r){
     if(r >  0.0001f) return  1;
     if(r < -0.0001f) return -1;
     return 0;

modules/objdetect/src/latentsvmdetector.cpp

@@ -9,7 +9,7 @@
 // CvLatentSvmDetector* cvLoadLatentSvmDetector(const char* filename);
 // INPUT
 // filename				- path to the file containing the parameters of
-						- trained Latent SVM detector
+//						- trained Latent SVM detector
 // OUTPUT
 // trained Latent SVM detector in internal representation
 */

modules/objdetect/src/lsvmparser.cpp

@@ -803,6 +803,5 @@ int loadModel(
     }
     (*kPartFilters)[0] = comp[0];
 
-    //printf("end_parse\n");
     return 0;
 }

modules/objdetect/src/matching.cpp

@@ -256,7 +256,7 @@ int convFFTConv2d(const CvLSVMFftImage *featMapImage, const CvLSVMFftImage *filt
     imagesMultRes = (float *)malloc(sizeof(float) * size);
     fftImagesMulti(featMapImage->channels[0], filterImage->channels[0], 
             featMapImage->dimY, featMapImage->dimX, imagesMultRes);
-    for (i = 1; (i < featMapImage->p) && (i < filterImage->p); i++)
+    for (i = 1; (i < (int)featMapImage->p) && (i < (int)filterImage->p); i++)
     {
         fftImagesMulti(featMapImage->channels[i],filterImage->channels[i], 
             featMapImage->dimY, featMapImage->dimX, imagesMult);

modules/objdetect/src/resizeimg.cpp

@@ -4,7 +4,6 @@
 #include <assert.h>
 #include <math.h>
 
-
 IplImage * resize_opencv (IplImage * img, float scale){
     IplImage * imgTmp;
 
@@ -242,3 +241,4 @@ IplImage * resize_opencv (IplImage * img, float scale){
 //    free(tmp);
 //    return imgTmp;
 //}
+//

modules/objdetect/src/routine.cpp

@@ -91,7 +91,7 @@ int allocFFTImage(CvLSVMFftImage **image, int p, int dimX, int dimY)
 
 int freeFFTImage(CvLSVMFftImage **image)
 {
-    unsigned int i;
+    unsigned i;
     if (*image == NULL) return LATENT_SVM_OK;
     for (i = 0; i < (*image)->p; i++)
     {