diff --git a/Jupiter/CString_Imp.h b/Jupiter/CString_Imp.h
index 41e03e9..d34e898 100644
--- a/Jupiter/CString_Imp.h
+++ b/Jupiter/CString_Imp.h
@@ -27,6 +27,17 @@
 #include "Functions.h"
 #include "CString.h"
 
+#if !defined va_copy
+
+#if defined __INTEL_COMPILER
+#pragma message("Warning: va_copy not properly defined. Assuming common implementation.")
+#define va_copy(dst, src) ((void)((dst) = (src)))
+#else
+#error "va_copy not defined."
+#endif // __INTEL_COMPILER
+
+#endif // va_copy
+
 /**
 * IMPLEMENTATION:
 *	CString_Type
@@ -247,9 +258,9 @@ template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::subs
 	return Jupiter::CString_Strict<T>::substring(*this, pos, Jupiter::String_Type<T>::length - pos);
 }
 
-template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::substring(size_t pos, size_t length) const
+template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::substring(size_t pos, size_t len) const
 {
-	return Jupiter::CString_Strict<T>::substring(*this, pos, length);
+	return Jupiter::CString_Strict<T>::substring(*this, pos, len);
 }
 
 template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::substring(const Jupiter::String_Type<T> &in, size_t pos)
@@ -263,13 +274,13 @@ template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::subs
 	return r;
 }
 
-template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::substring(const Jupiter::String_Type<T> &in, size_t pos, size_t length)
+template<typename T> Jupiter::CString_Strict<T> Jupiter::CString_Strict<T>::substring(const Jupiter::String_Type<T> &in, size_t pos, size_t len)
 {
 	if (pos > in.size()) return Jupiter::CString_Strict<T>();
-	if (length > in.size() - pos) length = in.size() - pos;
-	Jupiter::CString_Strict<T> r = Jupiter::CString_Strict<T>(length);
+	if (len > in.size() - pos) len = in.size() - pos;
+	Jupiter::CString_Strict<T> r = Jupiter::CString_Strict<T>(len);
 	size_t index;
-	for (index = 0; index != length && in.get(index + pos) != 0; index++) r.str[index] = in.get(index + pos);
+	for (index = 0; index != len && in.get(index + pos) != 0; index++) r.str[index] = in.get(index + pos);
 	r.str[index] = 0;
 	r.length = index;
 	return r;
@@ -724,13 +735,13 @@ template<typename T> Jupiter::CString_Loose<T> Jupiter::CString_Loose<T>::substr
 	return r;
 }
 
-template<typename T> Jupiter::CString_Loose<T> Jupiter::CString_Loose<T>::substring(const Jupiter::String_Type<T> &in, size_t pos, size_t length)
+template<typename T> Jupiter::CString_Loose<T> Jupiter::CString_Loose<T>::substring(const Jupiter::String_Type<T> &in, size_t pos, size_t len)
 {
 	if (pos > in.size()) return Jupiter::CString_Loose<T>();
-	if (length > in.size() - pos) length = in.size() - pos;
-	Jupiter::CString_Loose<T> r = Jupiter::CString_Loose<T>(length);
+	if (len > in.size() - pos) len = in.size() - pos;
+	Jupiter::CString_Loose<T> r = Jupiter::CString_Loose<T>(len);
 	size_t index;
-	for (index = 0; index != length && in.get(index + pos) != 0; index++) r.str[index] = in.get(index + pos);
+	for (index = 0; index != len && in.get(index + pos) != 0; index++) r.str[index] = in.get(index + pos);
 	r.str[index] = 0;
 	r.length = index;
 	return r;
diff --git a/Jupiter/Shift_String_Imp.h b/Jupiter/Shift_String_Imp.h
index c01151e..958cb86 100644
--- a/Jupiter/Shift_String_Imp.h
+++ b/Jupiter/Shift_String_Imp.h
@@ -24,21 +24,21 @@
  * Note: Modification of this file is not supported in any way.
  */
 
-template<typename T> size_t Jupiter::Shift_String_Type<T>::shiftLeft(size_t length)
+template<typename T> size_t Jupiter::Shift_String_Type<T>::shiftLeft(size_t len)
 {
 	size_t offset = Jupiter::String_Type<T>::str - Jupiter::Shift_String_Type<T>::base;
 	if (length > offset) length = offset;
-	Jupiter::String_Type<T>::str -= length;
-	Jupiter::String_Type<T>::length += length;
+	Jupiter::String_Type<T>::str -= len;
+	Jupiter::String_Type<T>::length += len;
 	return length;
 }
 
-template<typename T> size_t Jupiter::Shift_String_Type<T>::shiftRight(size_t length)
+template<typename T> size_t Jupiter::Shift_String_Type<T>::shiftRight(size_t len)
 {
 	if (length > Jupiter::String_Type<T>::length) length = Jupiter::String_Type<T>::length;
-	Jupiter::String_Type<T>::str += length;
-	Jupiter::String_Type<T>::length -= length;
-	return length;
+	Jupiter::String_Type<T>::str += len;
+	Jupiter::String_Type<T>::length -= len;
+	return len;
 }
 
 #endif // _SHIFT_STRING_IMP_H_HEADER
\ No newline at end of file