tinysyscall 0.1.0

a (no depend std) tiny syscall abstract layer...
Documentation 
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// c sytle str
pub unsafe fn strlen(s: *const u8) -> usize {
    let mut len = 0;
    unsafe {
        while *s.offset(len as isize) != 0 {
            len += 1;
        }
    }
    len
}

pub unsafe fn memset<T>(byte: u8) -> T {
    let mut value: T = core::mem::zeroed();
    let ptr = &mut value as *mut T;
    let len = core::mem::size_of::<T>();
    core::ptr::write_bytes(ptr as *mut u8, byte, len);
    value
}

pub unsafe fn memcpy(dest: *mut u8, src: *const u8, n: usize) {
    let mut i = 0;
    while i < n {
        *dest.add(i) = *src.add(i);
        i += 1;
    }
}