@@ -2,11 +2,10 @@

 #include <string.h>

 #include <strings.h>

 #include <stdio.h>

+#include <float.h>

 #include "fzy.h"

-#define SCORE_MIN -1

-

 int has_match(const char *needle, const char *haystack){

 	while(*needle){

 		if(!*haystack)

@@ -31,6 +30,8 @@ void mat_print(int *mat, int n, int m){

 #define max(a, b) (((a) > (b)) ? (a) : (b))

 typedef int score_t;

+#define SCORE_MAX DBL_MAX

+#define SCORE_MIN -DBL_MAX

 double calculate_score(const char *needle, const char *haystack, size_t *positions){

 	if(!*haystack || !*needle)

@@ -114,7 +115,7 @@ double calculate_score(const char *needle, const char *haystack, size_t *positio

 double match_positions(const char *needle, const char *haystack, size_t *positions){

 	if(!*needle){

-		return 1.0;

+		return SCORE_MAX;

 	}else if(!has_match(needle, haystack)){

 		return SCORE_MIN;

 	}else if(!strcasecmp(needle, haystack)){

@@ -123,7 +124,7 @@ double match_positions(const char *needle, const char *haystack, size_t *positio

 			for(int i = 0; i < n; i++)

 				positions[i] = i;

 		}

-		return 1.0;

+		return SCORE_MAX;

 	}else{

 		return calculate_score(needle, haystack, positions);

 	}