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code# Unix - 噫吁兮，危乎高哉

j*i2002-06-20 07:06

1 楼

#include
#include
#include
#include
#include
int main()
{
struct utmpx *U;
while ((U = getutxent())!=NULL) {
printf ( "%s", U -> ut_pid);
}
return 0;
}
I wrote these lines but it said that "Segmentation Fault (core dumped)"
Could you give me some suggestion. TX

s*m2002-06-20 07:06

2 楼

pid stuffs are generally integer, not string. maybe u->ut_pid = 0

【在 j***i 的大作中提到】

: #include
: #include
: #include
: #include
: #include
: int main()
: {
: struct utmpx *U;
: while ((U = getutxent())!=NULL) {
: printf ( "%s", U -> ut_pid);