Resolved some warnings related to float/double conversion.

Src/Files/FFmaGenericLoader.hpp

@@ -631,7 +631,7 @@ public:
         if (ndata != typeFReal[1]){
             typeFReal[1] = ndata;
         }
-        FReal x = boxWidth *0.5;
+        FReal x = boxWidth * FReal(0.5);
         if(this->binaryFile) {
             this->writerBinaryHeader(centerOfBox,x,nbParticles,typeFReal);
         }
@@ -654,7 +654,7 @@ public:
     void writeHeader(const FPoint<FReal> &centerOfBox,const FReal &boxWidth, const FSize &nbParticles,
                      const unsigned int  dataType, const unsigned int  nbDataPerRecord) {
         unsigned int typeFReal[2]  = {dataType , nbDataPerRecord };
-        FReal x = boxWidth *0.5;
+        FReal x = boxWidth * FReal(0.5);
         if(this->binaryFile) {
             this->writerBinaryHeader(centerOfBox,x,nbParticles,typeFReal);
         }

Src/Kernels/Interpolation/FInterpTensor.hpp

@@ -144,7 +144,7 @@ public:
                                               { 1,  1, -1},
                                               { 1,  1,  1} };
     // Translate center if cell widths are extended
-    const FReal frac = (1. - ExtendedCellRatio); 
+    const FReal frac = (FReal(1.) - ExtendedCellRatio); 
 
     ChildCenter.setX(FReal(RelativeChildPositions[ChildIndex][0]) * frac);
     ChildCenter.setY(FReal(RelativeChildPositions[ChildIndex][1]) * frac);

Src/Kernels/Uniform/FUnifInterpolator.hpp

@@ -121,7 +121,7 @@ class FUnifInterpolator : FNoCopyable
       FReal(FReal(ParentWidth)/FReal(2.) + CellWidthExtension) / FReal(ParentWidth + CellWidthExtension);
 
     // Child cell width
-    const FReal ChildWidth(2.*ExtendedCellRatio);
+    const FReal ChildWidth(FReal(2.)*ExtendedCellRatio);
 
     // loop: child cells
     for (unsigned int child=0; child<8; ++child) {

Src/Kernels/Uniform/FUnifRoots.hpp

@@ -75,9 +75,9 @@ struct FUnifRoots : FNoCopyable
         // NB: scale factor could be hardcoded (just as the roots)
         FReal scale;
         int omn = order-n-1;
-        if(omn%2) scale=-1.; // (-1)^(n-1-(k+1)+1)=(-1)^(omn-1)
-        else scale=1.;
-        scale/=FMath::pow(2.,order-1)*FMath::factorial<FReal>(n)*FMath::factorial<FReal>(omn);
+        if(omn%2) scale=FReal(-1.); // (-1)^(n-1-(k+1)+1)=(-1)^(omn-1)
+        else scale=FReal(1.);
+        scale/=FReal(FMath::pow(FReal(2.),order-1)*FMath::factorial<FReal>(n)*FMath::factorial<FReal>(omn));
 
         // compute L
         FReal L=FReal(1.);
@@ -88,7 +88,7 @@ struct FUnifRoots : FNoCopyable
 
                 // new version (reducing round-off)
                 // regular grid on [-1,1] (h simplifies, only the size of the domain and a remains i.e. 2. and -1.)
-                L *= ((order-1)*(x+1.)-2.*m);
+                L *= (FReal(order-1)*(x+FReal(1.))-FReal(2.)*FReal(m));
             }
         }