Cmake-infrastructure for tests and CI-setup for Levante

MR to prepare CMake-scripting and CI setup for unittests

src/util_arithmetic_expr.hpp

@@ -5,45 +5,35 @@
 #define NUM_FCT 9
 #define MAX_NAME_LEN 32
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-int priority(char op);
-
-#ifdef __cplusplus
-}
-#endif
-
 typedef enum { VARIABLE, VALUE, OPERATOR, FUNCTION } expr_type;
 typedef enum {
-  EXP = 0,
-  LOG = 1,
-  SIN = 2,
-  COS = 3,
-  MIN = 4,
-  MAX = 5,
-  IF = 6,
-  SQRT = 7,
-  ERF = 8
+    EXP = 0,
+    LOG = 1,
+    SIN = 2,
+    COS = 3,
+    MIN = 4,
+    MAX = 5,
+    IF = 6,
+    SQRT = 7,
+    ERF = 8
 } fct_type;
 
 extern const char *const fct_name[NUM_FCT];
 
 /* Data type for postfix stack and queue (shunting yard algorithm) */
 struct t_item {
-  expr_type type;
+    expr_type type;
 
-  char op;
-  double val;
-  fct_type fct;
-  char field[MAX_NAME_LEN];
+    char op;
+    double val;
+    fct_type fct;
+    char field[MAX_NAME_LEN];
 };
 
 /* Data type for stack or queue. */
 struct t_list {
-  int size;
-  struct t_item list[1024];
+    int size;
+    struct t_item list[1024];
 };
 
 /* takes a string as input and generates a post-fix parse tree. */