当我尝试在struct to file中打印一些变量时,我收到了分段错误。当我第一次编写代码时,我能够将结果打印到屏幕上,除了最后显示的分段错误
但是,当我更改我的代码以便打印到文件时,它会创建文件,但文件为空,而segmentation fault
会打印到屏幕上。
有什么建议吗?
/* all is an array of struct CASE,
artall is an array of struct ARTCOUNT,
pLast is last element in all */
void printArtCount (CASE* all, ARTCOUNT* artAll, CASE* pLast)
{
ARTCOUNT* artWalker = artAll;
CASE* walker;
char input[51];
FILE* spOut;
printf("File name for artist count output: ");
scanf("%50s", input);
spOut = fopen(input, "w");
while(artWalker->name)
{
fprintf(spOut, "%d ", artWalker->count);
fprintf(spOut, "%s\n", artWalker->name);
for(walker = all; walker <= pLast; walker++)
{
if (strcmp(walker->name, artWalker->name) == 0)
fputs(walker->art, spOut);
}
artWalker++;
}
return;
}
编辑:修复了代码,以便不再显示分段错误。 现在有效。
感谢。
答案 0 :(得分:1)
您可能正在读取数据超出其限制。
请尝试以下循环数组元素的方式。
len = sizeof(artWalker)/sizeof(artWalker[0]);
for (i=0; i<len ; i++) {
...
artWalker[i]->struct_member;
...
}