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#include <stdio.h>
#include <search.h>
#include <string.h>
#define CAST (int (*) (const void *, const void *))
int compar (const char * a, const char * b) {
return strcmp(a, b);
}
int main () {
void * root = NULL;
tsearch("key1", &root, CAST compar);
tsearch("key1", &root, CAST compar);
tsearch("key2", &root, CAST compar);
fprintf(stdout, "this should say key1: %s\n", *(char **) tfind("key1", &root, CAST compar));
return 0;
}
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