memmove, fprintf.

src/libruntime/jerry-libc.c

@@ -84,6 +84,36 @@ __memcpy(void *s1, /**< destination */
   return s1;
 } /* __memcpy */
 
+/**
+ * memmove
+ *
+ * @return the dest pointer's value
+ */
+void *
+__memmove(void *s1, /**< destination */
+          const void *s2, /**< source */
+          size_t n) /**< bytes number */
+{
+  uint8_t *dest_p = s1;
+  const uint8_t *src_p = s2;
+
+  if ( dest_p < src_p )
+  { /* from begin to end */
+    for ( size_t index = 0; index < n; index++ )
+    {
+        dest_p[ index ] = src_p[ index ];
+    }
+  } else if ( dest_p > src_p )
+  { /* from end to begin */
+    for ( size_t index = 1; index <= n; index++ )
+    {
+        dest_p[ n - index ] = src_p[ n - index ];
+    }
+  }
+
+  return s1;
+} /* __memmove */
+
 /** Compare two strings. return an integer less than, equal to, or greater than zero 
     if s1 is found, respectively, to be less than, to match, or be greater than s2.  */
 int

src/libruntime/jerry-libc.h

@@ -23,16 +23,17 @@
 
 typedef void FILE;
 
-extern void *__memset (void *s, int c, size_t n);
+extern void* __memset (void *s, int c, size_t n);
 extern int __memcmp (const void *s1, const void *s2, size_t n);
-extern void *__memcpy (void *s1, const void *s2, size_t n);
+extern void* __memcpy (void *s1, const void *s2, size_t n);
+extern void* __memmove (void *dest, const void *src, size_t n);
 extern int __printf (const char *format, ...);
 extern int __putchar (int);
 extern void __noreturn __exit (int);
 
 extern int __strcmp (const char *, const char *);
 extern int __strncmp (const char *, const char *, size_t);
-extern char *__strncpy (char *, const char *, size_t);
+extern char* __strncpy (char *, const char *, size_t);
 extern float __strtof (const char *, char **);
 extern size_t __strlen (const char *);
 
@@ -47,6 +48,7 @@ extern FILE* __fopen(const char *path, const char *mode);
 extern int __fclose(FILE *fp);
 extern size_t __fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
 extern size_t __fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
+extern int __fprintf(FILE *stream, const char *format, ...);
 
 #define DBL_MANT_DIG    (  52)
 #define DBL_DIG         (  10)