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progtest13:1.c
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/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char * strnstr(const char *s, const char *find, size_t slen)
{
char c, sc;
size_t len;
if ((c = *find++) != '\0') {
len = strlen(find);
do {
do {
if ((sc = *s++) == '\0' || slen-- < 1)
return (NULL);
} while (sc != c);
if (len > slen)
return (NULL);
} while (strncmp(s, find, len) != 0);
s--;
}
return ((char *)s);
}
int print_unique(char *loaded){
char * ptr, *unique, *addr;
addr = unique = (char *)malloc(sizeof(loaded));
if(unique == NULL)
return EXIT_FAILURE;
strcpy(unique, "");
ptr = strtok(loaded, "\n");
do{
if(strnstr(unique, ptr, strlen(ptr)) == NULL){
strcat(unique, ptr);
strcat(unique, "\n");
}
ptr = strtok(NULL, "\n");
}while(ptr != NULL);
printf("Unique strings:\n%s", unique);
free(addr);
return EXIT_SUCCESS;
}
int main (void)
{
char * loaded, slovo[128];
size_t size = 0, allocated = 128;
loaded = (char *)malloc(allocated*sizeof(char));
if(loaded == NULL)
return EXIT_FAILURE;
strcpy(loaded, "");
while(scanf("%s", slovo) != EOF){
if(strcmp(slovo, "konec") ==0){
print_unique(loaded);
free(loaded);
return EXIT_SUCCESS;
}
size = strlen(slovo);
if(size >=allocated){
allocated += 128;
loaded = (char *)realloc(loaded, allocated*sizeof(char));
if(loaded == NULL)
return EXIT_FAILURE;
}
strcat(loaded, slovo);
strcat(loaded, "\n");
}
free(loaded);
return EXIT_SUCCESS;
}