diff --git a/Manual.docx b/Manual.docx
index 2dcd5c2..1939048 100644
Binary files a/Manual.docx and b/Manual.docx differ
diff --git a/ORCACDefs/fcntl.h b/ORCACDefs/fcntl.h
index 29224b1..12ecc56 100644
--- a/ORCACDefs/fcntl.h
+++ b/ORCACDefs/fcntl.h
@@ -35,6 +35,6 @@ int             fcntl(int, int, ...);
 long            lseek(int, long, int);
 int             open(const char *, int, ...);
 int             read(int, void *, unsigned);
-int             write(int, void *, unsigned);
+int             write(int, const void *, unsigned);
 
 #endif
diff --git a/ORCACDefs/string.h b/ORCACDefs/string.h
index 05c2bf2..35b7581 100644
--- a/ORCACDefs/string.h
+++ b/ORCACDefs/string.h
@@ -46,12 +46,12 @@ int             strncmp(const char *, const char *, size_t);
 char           *strncpy(char *, const char *, size_t);
 char           *strpbrk(const char *, const char *);
 #ifndef __KeepNamespacePure__
-   int          strpos(char *, char);
+   int          strpos(const char *, char);
 #endif
 char           *strrchr(const char *, int);
 #ifndef __KeepNamespacePure__
-   char        *strrpbrk(char *, char *);
-   int          strrpos(char *, char);
+   char        *strrpbrk(const char *, const char *);
+   int          strrpos(const char *, char);
 #endif
 size_t          strspn(const char *, const char *);
 char           *strstr(const char *, const char *);