introduce a lot of errors when trying to apply model

LibSidServo/movingmodel.c

@@ -0,0 +1,63 @@
+/*
+ * This file is part of the moving_model project.
+ * Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "main.h"
+#include "movingmodel.h"
+#include "ramp.h"
+
+extern movemodel_t trapez;
+
+static void chkminmax(double *min, double *max){
+    if(*min <= *max) return;
+    double t = *min;
+    *min = *max;
+    *max = t;
+}
+
+movemodel_t *model_init(limits_t *l){
+    if(!l) return FALSE;
+    movemodel_t *model = calloc(1, sizeof(movemodel_t));
+    memcpy(model, &trapez, sizeof(movemodel_t));
+    if(!model->init_limits) goto fail;
+    moveparam_t *max = &l->max, *min = &l->min;
+    if(min->speed < 0.) min->speed = -min->speed;
+    if(max->speed < 0.) max->speed = -max->speed;
+    if(min->accel < 0.) min->accel = -min->accel;
+    if(max->accel < 0.) max->accel = -max->accel;
+    chkminmax(&min->coord, &max->coord);
+    chkminmax(&min->speed, &max->speed);
+    chkminmax(&min->accel, &max->accel);
+    if(!model->init_limits(l)) return NULL;
+    return model;
+fail:
+    free(model); return NULL;
+}
+
+int model_move2(movemodel_t *model, moveparam_t *target, double t){
+    if(!target || !model) return FALSE;
+    DBG("MOVE to %g at speed %g", target->coord, target->speed);
+    // only positive velocity
+    if(target->speed < 0.) target->speed = -target->speed;
+    // don't mind about acceleration - user cannot set it now
+    return model->calculate(target, t);
+}