sfdpgen interpolate_coord: use cgraph wrapper for allocation

The lib/cgraph/alloc.h wrappers are similar to the older lib/common/memory.h
wrappers except (1) they are header-only and (2) they live in a directory
(cgraph) that is at the root of the dependency tree. The long term plan is to
replace all use of lib/common/memory.h with lib/cgraph/alloc.h.

diff --git a/lib/sfdpgen/spring_electrical.c b/lib/sfdpgen/spring_electrical.c
index b9a3881087845f4f4ee90a3f879f90d5d78c00d5..9abeef17e947cff6b0e82ee9620d473392ef27f9 100644 (file)
--- a/lib/sfdpgen/spring_electrical.c
+++ b/lib/sfdpgen/spring_electrical.c
@@ -1582,9 +1582,9 @@ void print_matrix(double *x, int n, int dim){
 
 void interpolate_coord(int dim, SparseMatrix A, double *x){
   int i, j, k, *ia = A->ia, *ja = A->ja, nz;
-  double alpha = 0.5, beta, *y;
+  double alpha = 0.5, beta;
 
-  y = MALLOC(sizeof(double)*dim);
+  double *y = gv_calloc(dim, sizeof(double));
   for (i = 0; i < A->m; i++){
     for (k = 0; k < dim; k++) y[k] = 0;
     nz = 0;