X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=xdiff%2Fxutils.c;h=21ab8e7e263983b54c07e44150cedc5c43963a35;hb=8c278abcbe35b23e9f93e99daf2144336fad1849;hp=afaada1edf72c8797d3d7bbd24303638accd6c24;hpb=4c61b7d15a6215fa4dffa33c37c3ef9df80d3f67;p=git.git

diff --git a/xdiff/xutils.c b/xdiff/xutils.c
index afaada1e..21ab8e7e 100644
--- a/xdiff/xutils.c
+++ b/xdiff/xutils.c
@@ -29,6 +29,19 @@
 
 
 
+long xdl_bogosqrt(long n) {
+	long i;
+
+	/*
+	 * Classical integer square root approximation using shifts.
+	 */
+	for (i = 1; n > 0; n >>= 2)
+		i <<= 1;
+
+	return i;
+}
+
+
 int xdl_emit_diffrec(char const *rec, long size, char const *pre, long psize,
 		     xdemitcb_t *ecb) {
 	mmbuffer_t mb[3];
@@ -244,7 +257,7 @@ int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
 	memcpy(buf, "@@ -", 4);
 	nb += 4;
 
-	nb += xdl_num_out(buf + nb, c1 ? s1: 0);
+	nb += xdl_num_out(buf + nb, c1 ? s1: s1 - 1);
 
 	if (c1 != 1) {
 		memcpy(buf + nb, ",", 1);
@@ -256,7 +269,7 @@ int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
 	memcpy(buf + nb, " +", 2);
 	nb += 2;
 
-	nb += xdl_num_out(buf + nb, c2 ? s2: 0);
+	nb += xdl_num_out(buf + nb, c2 ? s2: s2 - 1);
 
 	if (c2 != 1) {
 		memcpy(buf + nb, ",", 1);