minor fixes

Author: balos1

include/sundials/sundials_stepper.h

@@ -19,7 +19,14 @@
 extern "C" {
 #endif
 
-typedef _SUNDIALS_STRUCT_ SUNStepper_s* SUNStepper;
+typedef int (*SUNJacFn)(sunrealtype t, N_Vector y, N_Vector fy, SUNMatrix Jac,
+                        void* user_data, N_Vector tmp1, N_Vector tmp2,
+                        N_Vector tmp3);
+
+typedef int (*SUNJacTimesFn)(N_Vector v, N_Vector Jv, sunrealtype t, N_Vector y,
+                             N_Vector fy, void* user_data, N_Vector tmp);
+
+typedef _SUNDIALS_STRUCT_ SUNStepper_* SUNStepper;
 
 typedef int (*SUNStepperAdvanceFn)(SUNStepper stepper, sunrealtype t0,
                                    sunrealtype tout, N_Vector y,
@@ -87,6 +94,9 @@ SUNErrCode SUNStepper_TryStep(SUNStepper stepper, sunrealtype t0,
                               sunrealtype tout, N_Vector y, sunrealtype* tret,
                               int* stop_reason);
 
+SUNDIALS_EXPORT
+SUNErrCode SUNStepper_Reset(SUNStepper stepper, sunrealtype tR, N_Vector yR);
+
 #ifdef __cplusplus
 }
 #endif

src/sundials/sundials_stepper.c

@@ -9,24 +9,35 @@
 #include "sundials/sundials_nvector.h"
 #include "sundials_stepper_impl.h"
 
-SUNErrCode SUNStepper_Create(SUNContext sunctx, SUNStepper* stepper)
+SUNErrCode SUNStepper_Create(SUNContext sunctx, SUNStepper* stepper_ptr)
 {
   SUNFunctionBegin(sunctx);
 
-  *stepper = NULL;
-  *stepper = (SUNStepper)malloc(sizeof(**stepper));
+  SUNStepper stepper = NULL;
+  stepper = malloc(sizeof(*stepper));
   SUNAssert(stepper, SUN_ERR_MALLOC_FAIL);
 
-  memset(*stepper, 0, sizeof(**stepper));
+  stepper->content = NULL;
+  stepper->sunctx = sunctx;
+  stepper->last_flag = SUN_SUCCESS;
+  stepper->forcing = NULL;
+  stepper->nforcing = 0;
+  stepper->nforcing_allocated = 0;
+  stepper->tshift = SUN_RCONST(0.0);
+  stepper->tscale = SUN_RCONST(0.0);
+  stepper->fused_scalars = NULL;
+  stepper->fused_vectors = NULL;
 
-  (*stepper)->ops = (SUNStepper_Ops)malloc(sizeof(*((*stepper)->ops)));
-  SUNAssert((*stepper)->ops, SUN_ERR_MALLOC_FAIL);
+  stepper->ops = malloc(sizeof(*(stepper->ops)));
+  SUNAssert(stepper->ops, SUN_ERR_MALLOC_FAIL);
 
-  memset((*stepper)->ops, 0, sizeof(*((*stepper)->ops)));
+  stepper->ops->advance = NULL;
+  stepper->ops->onestep = NULL;
+  stepper->ops->trystep = NULL;
+  stepper->ops->fullrhs = NULL;
+  stepper->ops->reset   = NULL;
 
-  /* initialize stepper data */
-  (*stepper)->last_flag = SUN_SUCCESS;
-  (*stepper)->sunctx    = sunctx;
+  *stepper_ptr = stepper;
 
   return SUN_SUCCESS;
 }
@@ -87,6 +98,13 @@ SUNErrCode SUNStepper_TryStep(SUNStepper stepper, sunrealtype t0,
   return SUN_ERR_NOT_IMPLEMENTED;
 }
 
+SUNErrCode SUNStepper_Reset(SUNStepper stepper, sunrealtype tR, N_Vector yR)
+{
+  SUNFunctionBegin(stepper->sunctx);
+  if (stepper->ops->advance) { return stepper->ops->reset(stepper, tR, yR); }
+  return SUN_ERR_NOT_IMPLEMENTED;
+}
+
 SUNErrCode SUNStepper_SetContent(SUNStepper stepper, void* content)
 {
   SUNFunctionBegin(stepper->sunctx);

src/sundials/sundials_stepper_impl.h

@@ -20,9 +20,9 @@
 extern "C" {
 #endif
 
-typedef struct SUNStepper_Ops_s* SUNStepper_Ops;
+typedef struct SUNStepper_Ops_* SUNStepper_Ops;
 
-struct SUNStepper_Ops_s
+struct SUNStepper_Ops_
 {
   SUNStepperAdvanceFn advance;
   SUNStepperOneStepFn onestep;
@@ -31,7 +31,7 @@ struct SUNStepper_Ops_s
   SUNStepperResetFn reset;
 };
 
-struct SUNStepper_s
+struct SUNStepper_
 {
   /* stepper specific content and operations */
   void* content;