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authorshyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-08-22 01:53:51 +0000
committershyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-08-22 01:53:51 +0000
commit1e760c0be3ed35874204114e7454509f740c0fe2 (patch)
treea75eb2b1eea073830902d1fa49c568c4525c8b57 /ruby_1_8_6/missing/memmove.c
parenta2055d63b41a6678dc7aeb17d0bece314e700c5a (diff)
add tag v1_8_6_71v1_8_5_71
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_71@13189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_6/missing/memmove.c')
-rw-r--r--ruby_1_8_6/missing/memmove.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/ruby_1_8_6/missing/memmove.c b/ruby_1_8_6/missing/memmove.c
new file mode 100644
index 0000000000..c9d67d8b45
--- /dev/null
+++ b/ruby_1_8_6/missing/memmove.c
@@ -0,0 +1,22 @@
+/* public domain rewrite of memcmp(3) */
+
+void *
+memmove (d, s, n)
+ void *d, *s;
+ int n;
+{
+ char *dst = d;
+ char *src = s;
+ void *ret = dst;
+
+ if (src < dst) {
+ src += n;
+ dst += n;
+ while (n--)
+ *--dst = *--src;
+ }
+ else if (dst < src)
+ while (n--)
+ *dst++ = *src++;
+ return ret;
+}