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use std::mem;


pub trait CS{fn c_size(&self)->usize;}

pub trait CCP<T>{fn c_ptr(&self)->*const T;}

pub trait CCNP<T,U>{fn cn_ptr(&self)->*const U;}

pub trait CL{fn c_len(&self)->usize;}

pub trait C8CP{fn c8_ptr(&self)->*const u8;}
pub trait C8MP{fn c8_mut_ptr(&mut self)->*mut u8;}
pub trait C8L{fn c8_len(&self)->usize;}



macro_rules! cs_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl CS for [$type;$N]{fn c_size(&self)->usize{mem::size_of::<$type>()}}
)+}}
macro_rules! cs_impls{($($type:ty)+)=>{$(
    impl CS for $type{fn c_size(&self)->usize{mem::size_of::<$type>()}}
    impl CS for Vec<$type>{fn c_size(&self)->usize{mem::size_of::<$type>()}}
    cs_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}


macro_rules! ccp_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl CCP<$type> for [$type;$N]{fn c_ptr(&self)->*const $type{self[..].as_ptr()}}
)+}}
macro_rules! ccp_impls{($($type:ty)+)=>{$(
    impl CCP<$type> for $type{fn c_ptr(&self)->*const $type{self as *const $type}}
    impl CCP<$type> for Vec<$type>{fn c_ptr(&self)->*const $type{self.as_ptr()}}
    ccp_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}


// +CCPP
pub trait CCPP<T,U>{fn cp_ptr(&self)->*const U;}
macro_rules! ccpp_impls_2{($t1:ty,$t2:ty,$($N:expr)+)=>{$(
    impl CCPP<$t1,$t2> for [$t1;$N]{fn cp_ptr(&self)->*const $t2{self[..].as_ptr() as *const $t2}}
)+}}
macro_rules! ccpp_impls{
    ($([$t1:ty,$t2:ty]),*)=>{
        $(
            impl CCPP<$t1,$t2> for $t1{fn cp_ptr(&self)->*const $t2{(self as *const $t1) as *const $t2}}
            impl CCPP<$t1,$t2> for Vec<$t1>{fn cp_ptr(&self)->*const $t2{self.as_ptr() as *const $t2}}
            ccpp_impls_2!($t1,$t2,
                00 01 02 03 04 05 06 07 08 09
                10 11 12 13 14 15 16 17 18 19
                20 21 22 23 24 25 26 27 28 29
                30 31 32 33 34 35 36 37 38 39
            );
        )+
    }
}
ccpp_impls!([u8,u8],[i8,u8],[u16,u16],[i16,u16],[u32,u32],[i32,u32],[u64,i64],[i64,u64]);
impl CCPP<u8,u8> for String{fn cp_ptr(&self)->*const u8{self.as_ptr()}}
impl CCPP<u8,u8> for str{fn cp_ptr(&self)->*const u8{self.as_ptr()}}
impl<'a,T,U> CCPP<T,U> for &'a T where T:CCPP<T,U>{fn cp_ptr(&self)->*const U{(*self).cp_ptr()}}
// -CCPP


macro_rules! cl_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl CL for [$type;$N]{fn c_len(&self)->usize{$N}}
)+}}
macro_rules! cl_impls{($($type:ty)+)=>{$(
    impl CL for $type{fn c_len(&self)->usize{1}}
    impl CL for Vec<$type>{fn c_len(&self)->usize{self.len()}}
    cl_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}


macro_rules! c8cp_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl C8CP for [$type;$N]{fn c8_ptr(&self)->*const u8{self[..].as_ptr() as *const u8}}
)+}}
macro_rules! c8cp_impls{($($type:ty)+)=>{$(
    impl C8CP for $type{fn c8_ptr(&self)->*const u8{(self as *const $type) as *const u8}}
    impl C8CP for Vec<$type>{fn c8_ptr(&self)->*const u8{self.as_ptr() as *const u8}}
    c8cp_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}

macro_rules! c8mp_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl C8MP for [$type;$N]{fn c8_mut_ptr(&mut self)->*mut u8{self[..].as_mut_ptr() as *mut u8}}
)+}}
macro_rules! c8mp_impls{($($type:ty)+)=>{$(
    impl C8MP for $type{fn c8_mut_ptr(&mut self)->*mut u8{(self as *mut $type) as *mut u8}}
    impl C8MP for Vec<$type>{fn c8_mut_ptr(&mut self)->*mut u8{self.as_mut_ptr() as *mut u8}}
    c8mp_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}

macro_rules! c8l_impls_2{($type:ty,$($N:expr)+)=>{$(
    impl C8L for [$type;$N]{fn c8_len(&self)->usize{$N*mem::size_of::<$type>()}}
)+}}
macro_rules! c8l_impls{($($type:ty)+)=>{$(
    impl C8L for $type{fn c8_len(&self)->usize{mem::size_of::<$type>()}}
    impl C8L for Vec<$type>{fn c8_len(&self)->usize{self.len()*mem::size_of::<$type>()}}
    c8l_impls_2!($type,
        00 01 02 03 04 05 06 07 08 09
        10 11 12 13 14 15 16 17 18 19
        20 21 22 23 24 25 26 27 28 29
        30 31 32 33 34 35 36 37 38 39
    );
)+}}


cs_impls!(u8 i8 u16 i16 u32 i32 u64 i64);
impl CS for String{fn c_size(&self)->usize{1}}
impl CS for str{fn c_size(&self)->usize{1}}
impl<'a,T> CS for &'a T where T:CS+?Sized{fn c_size(&self)->usize{(*self).c_size()}}

ccp_impls!(u8 i8 u16 i16 u32 i32 u64 i64);
impl CCP<u8> for String{fn c_ptr(&self)->*const u8{self.as_ptr()}}
impl CCP<u8> for str{fn c_ptr(&self)->*const u8{self.as_ptr()}}
impl<'a,T> CCP<T> for &'a T where T:CCP<T>{fn c_ptr(&self)->*const T{(*self).c_ptr()}}


cl_impls!(u8 i8 u16 i16 u32 i32 u64 i64);
impl CL for String{fn c_len(&self)->usize{self.len()}}
impl CL for str{fn c_len(&self)->usize{self.len()}}
impl<'a,T> CL for &'a T where T:CL+?Sized{fn c_len(&self)->usize{(*self).c_len()}}


c8cp_impls!(u8 i8 u16 i16 u32 i32 u64 i64);
impl C8CP for String{fn c8_ptr(&self)->*const u8{self.as_ptr()}}
impl C8CP for str{fn c8_ptr(&self)->*const u8{self.as_ptr()}}
impl<'a,T> C8CP for &'a T where T:C8CP+?Sized{fn c8_ptr(&self)->*const u8{(*self).c8_ptr()}}

c8mp_impls!(u8 i8 u16 i16 u32 i32 u64 i64);

c8l_impls!(u8 i8 u16 i16 u32 i32 u64 i64);
impl C8L for String{fn c8_len(&self)->usize{self.len()}}
impl C8L for str{fn c8_len(&self)->usize{self.len()}}
impl<'a,T> C8L for &'a T where T:C8L+?Sized{fn c8_len(&self)->usize{(*self).c8_len()}}