X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=int64.c;h=8a1cda1a5fddc274816a133ba7aabf7ce1e0dba3;hb=49d2cf19accb059b3b68d1fc2b78e606a578c3e8;hp=b43feea1c746daa75ab27fbcb7473f964741299b;hpb=af83203852f38313327107a6074ed3217dffc264;p=PuTTY.git

diff --git a/int64.c b/int64.c
index b43feea1..8a1cda1a 100644
--- a/int64.c
+++ b/int64.c
@@ -5,12 +5,12 @@
  */
 
 #include <assert.h>
+#include <string.h>
 
-typedef struct {
-    unsigned long hi, lo;
-} uint64, int64;
+#include "int64.h"
 
-uint64 uint64_div10(uint64 x, int *remainder) {
+uint64 uint64_div10(uint64 x, int *remainder)
+{
     uint64 y;
     int rem, r2;
     y.hi = x.hi / 10;
@@ -30,37 +30,50 @@ uint64 uint64_div10(uint64 x, int *remainder) {
     return y;
 }
 
-void uint64_decimal(uint64 x, char *buffer) {
+void uint64_decimal(uint64 x, char *buffer)
+{
     char buf[20];
     int start = 20;
     int d;
 
-    while (x.hi || x.lo) {
+    do {
 	x = uint64_div10(x, &d);
 	assert(start > 0);
 	buf[--start] = d + '0';
-    }
+    } while (x.hi || x.lo);
 
-    memcpy(buffer, buf+start, sizeof(buf)-start);
-    buffer[sizeof(buf)-start] = '\0';
+    memcpy(buffer, buf + start, sizeof(buf) - start);
+    buffer[sizeof(buf) - start] = '\0';
 }
 
-uint64 uint64_make(unsigned long hi, unsigned long lo) {
+uint64 uint64_make(unsigned long hi, unsigned long lo)
+{
     uint64 y;
     y.hi = hi;
     y.lo = lo;
     return y;
 }
 
-uint64 uint64_add(uint64 x, uint64 y) {
+uint64 uint64_add(uint64 x, uint64 y)
+{
     x.lo += y.lo;
     x.hi += y.hi + (x.lo < y.lo ? 1 : 0);
     return x;
 }
 
-uint64 uint64_add32(uint64 x, unsigned long y) {
+uint64 uint64_add32(uint64 x, unsigned long y)
+{
     uint64 yy;
     yy.hi = 0;
     yy.lo = y;
     return uint64_add(x, yy);
 }
+
+int uint64_compare(uint64 x, uint64 y)
+{
+    if (x.hi != y.hi)
+	return x.hi < y.hi ? -1 : +1;
+    if (x.lo != y.lo)
+	return x.lo < y.lo ? -1 : +1;
+    return 0;
+}