test-mergesort.c


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#include "cache.h"
#include "mergesort.h"

struct line {
	char *text;
	struct line *next;
};

static void *get_next(const void *a)
{
	return ((const struct line *)a)->next;
}

static void set_next(void *a, void *b)
{
	((struct line *)a)->next = b;
}

static int compare_strings(const void *a, const void *b)
{
	const struct line *x = a, *y = b;
	return strcmp(x->text, y->text);
}

int main(int argc, const char **argv)
{
	struct line *line, *p = NULL, *lines = NULL;
	struct strbuf sb = STRBUF_INIT;

	for (;;) {
		if (strbuf_getwholeline(&sb, stdin, '\n'))
			break;
		line = xmalloc(sizeof(struct line));
		line->text = strbuf_detach(&sb, NULL);
		if (p) {
			line->next = p->next;
			p->next = line;
		} else {
			line->next = NULL;
			lines = line;
		}
		p = line;
	}

	lines = llist_mergesort(lines, get_next, set_next, compare_strings);

	while (lines) {
		printf("%s", lines->text);
		lines = lines->next;
	}
	return 0;
}
author	Ajay Kumar <ajaykumar.rs@samsung.com>	2014-02-12 11:32:30 +0900
committer	chrome-internal-fetch <chrome-internal-fetch@google.com>	2014-02-19 18:27:36 +0000
commit	8754d59563b30ad1a21fbeda4d09595fae5ae660 (patch)
tree	db71eac3e4447d05dab810ccbddac065470cd172 /Documentation
parent	81dbfa2fa9d8c4d1fd63ed0129009229068fd37e (diff)
download	chromeos-8754d59563b30ad1a21fbeda4d09595fae5ae660.tar.gz