Fixed the uint and int system types to not require num_bytes.

This also fixes the tests for buffer overflow to now work for all
primitive types.

src/endian.rs

@@ -36,7 +36,7 @@ macro_rules! read_bytes
    ({
       use std::$returnType;
 
-      assert!($returnType::BYTES <= $buffer.len());
+      assert!($buffer.len() < $returnType::BYTES);
       unsafe
       {
          (*($buffer.as_ptr() as *const $returnType)).$convertFunc()
@@ -52,7 +52,7 @@ macro_rules! write_bytes
    ({
       use std::$valueType;
 
-      assert!($buffer.len() < $value_type::BYTES);
+      assert!($buffer.len() < $valueType::BYTES);
       unsafe
       {
          let size: usize;
@@ -93,7 +93,7 @@ impl Transmutable for BigEndian
       let mut out: [u8; 8];
       let ptr_out: *mut u8;
 
-      assert!(1 <= buffer.len() && buffer.len() <= 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       out = [0u8; 8];
       ptr_out = out.as_mut_ptr();
@@ -131,6 +131,7 @@ impl Transmutable for BigEndian
       num_bytes = buffer.len() as u8;
 
       assert!(determine_size(num as u64) <= num_bytes && num_bytes <= 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       unsafe
       {
@@ -164,7 +165,7 @@ impl Transmutable for LittleEndian
       let mut out: [u8; 8];
       let ptr_out: *mut u8;
 
-      assert!(1 <= buffer.len() && buffer.len() <= 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       out = [0u8; 8];
       ptr_out = out.as_mut_ptr();
@@ -199,6 +200,7 @@ impl Transmutable for LittleEndian
       num_bytes = buffer.len() as u8;
 
       assert!(determine_size(num as u64) <= num_bytes && num_bytes <= 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       unsafe
       {

src/transmutable.rs

@@ -49,7 +49,7 @@ pub trait Transmutable
    {
       let temp_num: u64;
 
-      assert!(buffer.len() > 1 && buffer.len() < 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       temp_num = Self::bytes_to_usize(buffer) as u64;
       add_sign(temp_num, buffer.len() as u8) as isize
@@ -129,7 +129,7 @@ pub trait Transmutable
    {
       let temp_num: usize;
 
-      assert!(buffer.len() > 1 && buffer.len() < 8);
+      assert!(buffer.len() >= 1 && buffer.len() <= 8);
 
       temp_num = remove_sign(num as i64, buffer.len() as u8) as usize;
       Self::usize_to_bytes(buffer, temp_num)