diff --git a/integer.cpp b/integer.cpp
index 671852d..02c0c87 100644
--- a/integer.cpp
+++ b/integer.cpp
@@ -2929,6 +2929,11 @@ signed long Integer::ConvertToLong() const
 	return sign==POSITIVE ? value : -(signed long)value;
 }
 
+Integer::Integer(BufferedTransformation &encodedInteger, size_t byteCount, Signedness s)
+{
+	Decode(encodedInteger, byteCount, s);
+}
+
 Integer::Integer(BufferedTransformation &encodedInteger, size_t byteCount, Signedness s, ByteOrder o)
 {
 	assert(o == BIG_ENDIAN_ORDER || o == LITTLE_ENDIAN_ORDER);
@@ -2946,6 +2951,11 @@ Integer::Integer(BufferedTransformation &encodedInteger, size_t byteCount, Signe
 	Decode(encodedInteger, byteCount, s);
 }
 
+Integer::Integer(const byte *encodedInteger, size_t byteCount, Signedness s)
+{
+	Decode(encodedInteger, byteCount, s);
+}
+
 Integer::Integer(const byte *encodedInteger, size_t byteCount, Signedness s, ByteOrder o)
 {
 	assert(o == BIG_ENDIAN_ORDER || o == LITTLE_ENDIAN_ORDER);
@@ -3104,7 +3114,7 @@ Integer::Integer(word value, size_t length)
 }
 
 template <class T>
-static Integer StringToInteger(const T *str, ByteOrder order)
+static Integer StringToInteger(const T *str, ByteOrder order = BIG_ENDIAN_ORDER)
 {
 	assert( order == BIG_ENDIAN_ORDER || order == LITTLE_ENDIAN_ORDER );
 
@@ -3238,12 +3248,24 @@ static Integer StringToInteger(const T *str, ByteOrder order)
 	return v;
 }
 
+Integer::Integer(const char *str)
+	: reg(2), sign(POSITIVE)
+{
+	*this = StringToInteger(str);
+}
+
 Integer::Integer(const char *str, ByteOrder order)
 	: reg(2), sign(POSITIVE)
 {
 	*this = StringToInteger(str,order);
 }
 
+Integer::Integer(const wchar_t *str)
+	: reg(2), sign(POSITIVE)
+{
+	*this = StringToInteger(str);
+}
+
 Integer::Integer(const wchar_t *str, ByteOrder order)
 	: reg(2), sign(POSITIVE)
 {
diff --git a/integer.h b/integer.h
index f289779..f5773bd 100644
--- a/integer.h
+++ b/integer.h
@@ -120,7 +120,8 @@ public:
 		//!   insensitive suffix of 'h', 'o', or 'b'.  No suffix means base 10.
 		//! \details Byte order was added at Crypto++ 5.7 to allow use of little-endian
 		//!   integers with curve25519, Poly1305 and Microsoft CAPI.
-		explicit Integer(const char *str, ByteOrder order = BIG_ENDIAN_ORDER);
+		explicit Integer(const char *str);
+		explicit Integer(const char *str, ByteOrder order);
 
 		//! \brief Convert from a wide C-string
 		//! \param str wide C-string value
@@ -129,7 +130,8 @@ public:
 		//!   insensitive suffix of 'h', 'o', or 'b'.  No suffix means base 10.
 		//! \details Byte order was added at Crypto++ 5.7 to allow use of little-endian
 		//!   integers with curve25519, Poly1305 and Microsoft CAPI.
-		explicit Integer(const wchar_t *str, ByteOrder order = BIG_ENDIAN_ORDER);
+		explicit Integer(const wchar_t *str);
+		explicit Integer(const wchar_t *str, ByteOrder order);
 
 		//! \brief Convert from a big-endian byte array
 		//! \param encodedInteger big-endian byte array
@@ -138,7 +140,8 @@ public:
 		//! \param order byte order
 		//! \details Byte order was added at Crypto++ 5.7 to allow use of little-endian
 		//!   integers with curve25519, Poly1305 and Microsoft CAPI.
-		Integer(const byte *encodedInteger, size_t byteCount, Signedness sign=UNSIGNED, ByteOrder order = BIG_ENDIAN_ORDER);
+		Integer(const byte *encodedInteger, size_t byteCount, Signedness sign=UNSIGNED);
+		Integer(const byte *encodedInteger, size_t byteCount, Signedness sign, ByteOrder order);
 
 		//! \brief Convert from a big-endian array
 		//! \param bt BufferedTransformation object with big-endian byte array
@@ -147,7 +150,8 @@ public:
 		//! \param order byte order
 		//! \details Byte order was added at Crypto++ 5.7 to allow use of little-endian
 		//!   integers with curve25519, Poly1305 and Microsoft CAPI.
-		Integer(BufferedTransformation &bt, size_t byteCount, Signedness sign=UNSIGNED, ByteOrder order = BIG_ENDIAN_ORDER);
+		Integer(BufferedTransformation &bt, size_t byteCount, Signedness sign=UNSIGNED);
+		Integer(BufferedTransformation &bt, size_t byteCount, Signedness sign, ByteOrder order);
 
 		//! \brief Convert from a BER encoded byte array
 		//! \param bt BufferedTransformation object with BER encoded byte array