remove unused vector_subtract_from

diff --git a/lib/sparse/general.c b/lib/sparse/general.c
index f9e2bec668e7a8739022bd80d466fc009e3d8cce..66893e3219098cf7b4ce0a896c746670df7f06bf 100644 (file)
--- a/lib/sparse/general.c
+++ b/lib/sparse/general.c
@@ -45,12 +45,6 @@ int *random_permutation(int n){
 }
 
 
-real* vector_subtract_from(int n, real *x, real *y){
-  /* y = x-y */
-  int i;
-  for (i = 0; i < n; i++) y[i] = y[i] - x[i];
-  return y;
-}
 real* vector_subtract_to(int n, real *x, real *y){
   /* y = x-y */
   int i;

diff --git a/lib/sparse/general.h b/lib/sparse/general.h
index bc2aa6ac12019ac430d449da006c57c63f471714..1f2d2676ab941be4d9d2b463226be7252eff44b5 100644 (file)
--- a/lib/sparse/general.h
+++ b/lib/sparse/general.h
@@ -85,7 +85,6 @@ extern int *random_permutation(int n);/* random permutation of 0 to n-1 */
 
 
 real* vector_subtract_to(int n, real *x, real *y);/* y = x-y */
-real* vector_subtract_from(int n, real *x, real *y);/* y = y-x */
 
 real vector_product(int n, real *x, real *y);