"Starts with" lookup for symbols in symtab

symtab.c

@@ -80,6 +80,19 @@ int lookup_symbol(const char *name, unsigned kind) {
   return -1;
 }
 
+int lookup_starts_with(int *results, const char *name_part) {
+  int found_num = 0;
+  int i;
+  for(i = first_empty - 1; i > FUN_REG; i--) {
+    const char *symbol_name = symbol_table[i].name;
+    if(strstr(symbol_name, name_part) == symbol_name) {
+      results[found_num] = i;
+      ++found_num;
+    }
+  }
+  return found_num;
+}
+
 void set_name(int index, char *name) {
   if(index > -1 && index < SYMBOL_TABLE_LENGTH)
     symbol_table[index].name = name;

symtab.h

@@ -38,6 +38,14 @@ int insert_literal(char *str, unsigned type);
  */
 int lookup_symbol(const char *name, unsigned kind);
 
+/*
+ * Searches for symbols which names start with `name_part`.
+ * Indices of matching elements are pushed to the `results` array.
+ *
+ * Return value is number of elements found.
+ */
+int lookup_starts_with(int *results, const char *name_part);
+
 // Setters and getters for element fields.
 void     set_name(int index, char *name);
 char*    get_name(int index);