stdlib_array:local:
:depth: 2
Module for index manipulation and array handling tasks.
truelocExperimental
Turn a logical mask into an index array by selecting all true values.
Provides similar functionality like the built-in where or the intrinsic procedures merge and pack when working with logical mask.
The built-in / intrinsics are usually preferable to trueloc, unless the access to the index array is required.
loc = {f:func}trueloc (array[, lbound])
Pure function.
array: List of default logical arrays. This argument is intent(in).
lbound: Lower bound of the array to index. This argument is optional and intent(in).
Returns an array of default integer size, with a maximum length of size(array) elements.
```{literalinclude} ../../example/array/example_trueloc.f90 :language: fortran
### `falseloc`
#### Status
Experimental
#### Description
Turn a logical mask into an index array by selecting all false values.
Provides similar functionality like the built-in `where` or the intrinsic procedures `merge` and `pack` when working with logical mask.
The built-in / intrinsics are usually preferable to `falseloc`, unless the access to the index array is required.
#### Syntax
`loc =` {f:func}`falseloc` `(array[, lbound])`
#### Class
Pure function.
#### Arguments
`array`: List of default logical arrays. This argument is `intent(in)`.
`lbound`: Lower bound of the array to index. This argument is `optional` and `intent(in)`.
#### Return value
Returns an array of default integer size, with a maximum length of `size(array)` elements.
#### Examples
```{literalinclude} ../../example/array/example_falseloc.f90
:language: fortran