수다닷컴

질문이 두가지가 있는데요..1. void *root;
root=NULL;
이 부분에 어떻게 Hello, Linux 등등의 문자열이 들어갈수 있죠??2. (int (*)(const void *, const void *))compare이 부분이 함수 참조와 정의가 어떻게 돌아가는지 좀 알려주셨으면소스\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\#include stdio.h
#include search.h
#include string.h

int compare(const void *a, const void *b);
void pointtree(const void const *node, const VISIT order, const int depth);

main()
{
void *root;
root=NULL;

tsearch(Hello, &root, (int (*)(const void *, const void *))compare);
tsearch(Linux, &root, (int (*)(const void *, const void *))compare);
tsearch(C, &root, (int (*)(const void *, const void *))compare);

twalk(root, pointtree);
printf(\n\n);

tdelete(Hello, &root, (int (*)(const void *, const void *))compare);
twalk(root, pointtree);

}

int compare(const void *a, const void *b)
{
return strcmp((char *)a, (char *)b);
}

void pointtree(const void const *node, const VISIT order, const int depth)
{
char *str;
str = *(char **)node;

if(order==postorder || order==leaf)
printf(string : %s\n, str);
}

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