formater corrected

Author: Alexandre Hoffmann

include/FSLinalg/Matrix/Formater.hpp

@@ -21,40 +21,42 @@ class fmt::formatter< Expr > : public fmt::formatter< typename FSLinalg::MatrixB
 		Size rowsM1 = Size(A.getRows()-1);
 		Size colsM1 = Size(A.getCols()-1);
 
+		auto out = ctx.out();
+		
 		if constexpr (Expr::isRowVector or Expr::isColVector)
 		{
-			ctx.out() = format_to(ctx.out(), "[");
+			out = format_to(out, "[");
 			for (Size i=0; i!=Size(A.getSize()-1); ++i)
 			{
-				ctx.out() = format_to(ctx.out(), "{}, ", A[i]);
+				out = format_to(out, "{}, ", A[i]);
 			}
 			if constexpr (Expr::isRowVector)
 			{
-				return format_to(ctx.out(), "{}]^T", A[Size(A.getSize()-1)]);
+				return format_to(out, "{}]^T", A[Size(A.getSize()-1)]);
 			}
 			else
 			{
-				return format_to(ctx.out(), "{}]", A[Size(A.getSize()-1)]);
+				return format_to(out, "{}]", A[Size(A.getSize()-1)]);
 			}
 		}
 		else
 		{
-			ctx.out() = format_to(ctx.out(), "[");
+			out = format_to(out, "[");
 			for (Size i=0; i!=rowsM1; ++i)
 			{
-				ctx.out() = format_to(ctx.out(), "[");
+				out = format_to(out, "[");
 				for (Size j=0; j!=colsM1; ++j)
 				{
-					ctx.out() = format_to(ctx.out(), "{}, ", A(i,j));
+					out = format_to(out, "{}, ", A(i,j));
 				}
-				ctx.out() = format_to(ctx.out(), "{}]\n", A(i, colsM1));
+				out = format_to(out, "{}]\n", A(i, colsM1));
 			}
-			ctx.out() = format_to(ctx.out(), "[");
+			out = format_to(out, "[");
 			for (Size j=0; j!=colsM1; ++j)
 			{
-				ctx.out() = format_to(ctx.out(), "{}, ", A(rowsM1,j));
+				out = format_to(out, "{}, ", A(rowsM1,j));
 			}
-			return format_to(ctx.out(), "{}]]", A(rowsM1,colsM1));
+			return format_to(out, "{}]]", A(rowsM1,colsM1));
 		}
 	}
 };