語法錯誤：缺少';' 在'type'C代碼之前

Question

是的，之前已經有人詢問過，我已經按照這里的建議進行操作，並將我的頂部設置仍然無效。

void map_delete(map_t *map, char *key) {
   assert(map_contains(map, key));

   map_elem_t *prev;
   map_elem_t *elem_to_remove;

   prev = map->elem;
   while(strcmp(prev->next->key, key) != 0) prev= prev->next;

   elem_to_remove = prev->next;
   prev->next = elem_to_remove->next;
   free(elem_to_remove);
}


map.c(74): error C2143: syntax error : missing ';' before 'type'
map.c(76): error C2065: 'prev' : undeclared identifier
map.c(76): warning C4047: '=' : 'int' differs in levels of indirection from 'map_elem_t *'
map.c(77): error C2065: 'prev' : undeclared identifier
map.c(77): error C2223: left of '->next' must point to struct/union
map.c(77): error C2198: 'strcmp' : too few arguments for call
map.c(77): error C2065: 'prev' : undeclared identifier
map.c(77): error C2065: 'prev' : undeclared identifier
map.c(77): error C2223: left of '->next' must point to struct/union
map.c(79): error C2065: 'elem_to_remove' : undeclared identifier
map.c(79): error C2065: 'prev' : undeclared identifier
map.c(79): error C2223: left of '->next' must point to struct/union
map.c(80): error C2065: 'prev' : undeclared identifier
map.c(80): error C2223: left of '->next' must point to struct/union
map.c(80): error C2065: 'elem_to_remove' : undeclared identifier
map.c(80): error C2223: left of '->next' must point to struct/union
map.c(81): error C2065: 'elem_to_remove' : undeclared identifier
map.c(81): warning C4022: 'free' : pointer mismatch for actual parameter 1

請注意代碼的邏輯是正確的，因為它正在另一台機器上工作，它的編譯器對布局不滿意

Answer 1

編譯器抱怨因為assert不是聲明。 您需要移動assert以使其在聲明之后出現。

使用支持更新近C89標准的C編譯器將是一個很好的舉措。