Question

我正在使用valgrind检查代码中的内存泄漏。
我有这个结构：

typedef struct apartment_t* Apartment;
struct apartment_t {
    SquareType** squares;
    int width;
    int length;
    int price;
};

使用它的功能：

Apartment apartmentCreate(SquareType** squares, int length,
        int width, int price){
    if(squares == NULL || length<=0 || width<=0 || price<0)
            return NULL;

    Apartment newApartment=malloc(sizeof(*newApartment));
        if(newApartment==NULL)
            return NULL;
    newApartment->length = length;
    newApartment->width = width;
    newApartment->price = price;
    SquareType** newSquares=malloc(sizeof(*newSquares)*length);
        if(newSquares==NULL){
            free(newApartment);
            return NULL;
        }

        for (int i=0;i<length;i++) {
            newSquares[i] = malloc(sizeof(*newSquares[i])*width);
            if (newSquares[i] == NULL) {
                for (int j=i;j>=0;j--)
                    free(newSquares[j]);

                newSquares = NULL;
                free(newApartment);
                return NULL;
            }
        }

        for(int i=0;i<length;i++){
            for(int j=0;j<width;j++){
                newSquares[i][j]=squares[i][j];
            }
        }

        newApartment->squares=newSquares;
        newSquares=NULL;

        return newApartment;
}

Valgrind发现了两个内存泄漏，但是当我尝试在最后释放（newSquares）时（newApartment->squares=newSquares;之后）它没有显示内存泄漏，但却给了我Segmentation Fault。我错过了什么？谢谢！

有内存泄漏问题

0 个答案: