Rename fixdiff boundary condition to reflect.

This is what it actually does, we do not support setting arbitrary
derivative values.

API bump.

1 files changed, 1 insertions, 1 deletions

diff --git a/mg2d.c b/mg2d.c
index 0cb9dd8..5522ed5 100644
--- a/mg2d.c
+++ b/mg2d.c
@@ -456,7 +456,7 @@ static int mg_levels_init(MG2DContext *ctx)
                 else
                     bnd_zero(bdst, ctx->fd_stencil, cur->solver->domain_size[0]);
                 break;
-            case MG2D_BC_TYPE_FIXDIFF:
+            case MG2D_BC_TYPE_REFLECT:
                 bnd_zero(bdst, ctx->fd_stencil, cur->solver->domain_size[0]);
                 break;
             default: