iall in Fortran Wiki

## Description
Reduces with bitwise and the elements of `array` along dimension `dim`
if the corresponding element in `mask` is `true`.
## Standard
[[Fortran 2008]] and later
## Class
Transformational function
## Syntax
~~~~~~~~~~~~~~~~~~~~ {: lang=fortran }
result = iall(array[, mask])
result = iall(array, dim[, mask])
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
## Arguments
- `array` - Shall be an array of type `integer`
- `dim` - (Optional) shall be a scalar of type `integer` with a value
 in the range from 1 to $n,ドル where $n$ equals the rank of `array`.
- `mask` - (Optional) shall be of type `logical` and either be a
 scalar or an array of the same shape as `array`.
## Return value
The result is of the same type as `array`.
If `dim` is absent, a scalar with the bitwise ALL of all elements in
`array` is returned. Otherwise, an array of rank $n-1,ドル where $n$ equals
the rank of `array`, and a shape similar to that of `array` with
dimension `dim` dropped is returned.
## Example
~~~~~~~~~~~~~~~~~~~~ {: lang=fortran }
program test_iall
 integer(1) :: a(2)
 a(1) = b'00100100'
 a(2) = b'01101010'
 ! prints 00100000
 print '(b8.8)', iall(a)
end program
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
## See also
[[iany]], [[iparity]], [[iand]]
category: intrinsics