rust/tests/ui/repr/repr-align.rs

#![allow(dead_code)]

#[repr(align(16.0))] //~ ERROR: invalid `repr(align)` attribute: not an unsuffixed integer
                     //~| ERROR: invalid `repr(align)` attribute: not an unsuffixed integer
struct S0(i32);

#[repr(align(15))] //~ ERROR: invalid `repr(align)` attribute: not a power of two
                   //~| ERROR: invalid `repr(align)` attribute: not a power of two
struct S1(i32);

#[repr(align(4294967296))] //~ ERROR: invalid `repr(align)` attribute: larger than 2^29
                           //~| ERROR: invalid `repr(align)` attribute: larger than 2^29
struct S2(i32);

#[repr(align(536870912))] // ok: this is the largest accepted alignment
struct S3(i32);

#[repr(align(0))] //~ ERROR: invalid `repr(align)` attribute: not a power of two
                  //~| ERROR: invalid `repr(align)` attribute: not a power of two
struct S4(i32);

#[repr(align(16.0))] //~ ERROR: invalid `repr(align)` attribute: not an unsuffixed integer
                     //~| ERROR: invalid `repr(align)` attribute: not an unsuffixed integer
enum E0 { A, B }

#[repr(align(15))] //~ ERROR: invalid `repr(align)` attribute: not a power of two
                   //~| ERROR: invalid `repr(align)` attribute: not a power of two
enum E1 { A, B }

#[repr(align(4294967296))] //~ ERROR: invalid `repr(align)` attribute: larger than 2^29
                           //~| ERROR: invalid `repr(align)` attribute: larger than 2^29
enum E2 { A, B }

#[repr(align(536870912))] // ok: this is the largest accepted alignment
enum E3 { A, B }

#[repr(align(0))] //~ ERROR: invalid `repr(align)` attribute: not a power of two
                  //~| ERROR: invalid `repr(align)` attribute: not a power of two
enum E4 { A, B }

fn main() {}