[問題] segmentation fault產生原因

看板C_and_CPP作者ptt0720 (濕濕)時間6年前 (2017/06/26 16:29)推噓3(3推 0噓 23→)

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開發平台(Platform): (Ex: Win10, Linux, ...) MacOS 編譯器(Ex: GCC, clang, VC++...)+目標環境(跟開發平台不同的話需列出) GCC 額外使用到的函數庫(Library Used): (Ex: OpenGL, ...) 問題(Question)：在macOS一直出現segmentation fault(數字越來越大) 在win10結果錯誤1232367 在Linux正確無誤1245367 餵入的資料(Input)：預期的正確結果(Expected Output)： 124532 錯誤結果(Wrong Output)： [1] 2658 segmentation fault >./a.out [1] 2710 segmentation fault >./a.out 程式碼(Code)：(請善用置底文網頁, 記得排版) #include <stdio.h> #include <stdlib.h> struct Node{ int data; struct Node *_child; struct Node *_child2; }; struct Node *creatTree(){ struct Node *_node = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node2 = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node3 = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node4 = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node5 = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node6 = (struct Node*)malloc(sizeof(struct Node)); struct Node *_node7 = (struct Node*)malloc(sizeof(struct Node)); _node -> data =1; _node2 -> data =2; _node3 -> data =3; _node4 -> data =4; _node5 -> data =5; _node6 -> data =6; _node7 -> data =7; _node -> _child =_node2; _node -> _child2=_node3; _node2 -> _child =_node4; _node2 -> _child2=_node5; _node3 -> _child =_node6; _node3 -> _child =_node6; _node3 -> _child2=_node7; return _node; } void printAll_DFS(struct Node* node){ if(node!=NULL){ printf("%d",node->data); if(node->_child!=NULL){ printAll_DFS(node -> _child); } if(node->_child2!=NULL){ printAll_DFS(node -> _child2); } } } int main(){ struct Node * tmp = NULL; tmp = creatTree(); printAll_DFS(tmp); printf("\n"); } -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.114.123.157 ※ 文章網址: https://www.ptt.cc/bbs/C_and_CPP/M.1498465781.A.A1C.html

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ptt0720

06/26 16:31, , 1^F

06/26 16:31, 1^F

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Hazukashiine

06/26 16:35, , 2^F

06/26 16:35, 2^F

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Hazukashiine

06/26 16:37, , 3^F

06/26 16:37, 3^F