npm package: @stdlib/strided-base-min-view-buffer-index
Description: Return the minimum accessible index based on a set of provided strided array parameters.
Author: The Stdlib Authors
Latest version: 0.3.1

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# minViewBufferIndex

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Return the minimum accessible index based on a set of provided strided array parameters.

<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/strided-base-min-view-buffer-index
```

</section>

<section class="usage">

## Usage

```javascript
var minViewBufferIndex = require( '@stdlib/strided-base-min-view-buffer-index' );
```

#### minViewBufferIndex( N, stride, offset )

Returns the minimum accessible index based on a set of provided strided array parameters.

```javascript
var idx = minViewBufferIndex( 3, -2, 10 );
// returns 6
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   If `N <= 0`, the function returns the specified `offset`; however, do note that, when `N` equals zero, no strided array elements should be accessed.

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' );
var minViewBufferIndex = require( '@stdlib/strided-base-min-view-buffer-index' );

// Generate a random number of indexed elements:
var N = discreteUniform( 10, 20 );

// Generate a random stride length:
var stride = discreteUniform( -10, 10 );

// Generate a random offset:
var offset = discreteUniform( 0, 100 ) + ( ( stride < 0 ) ? (1-N)*stride : 0 );

// Compute the minimum accessible index:
var idx = minViewBufferIndex( N, stride, offset );

console.log( 'N: %d, stride: %d, offset: %d => %d', N, stride, offset, idx );
```

</section>

<!-- /.examples -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

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<section class="usage">

### Usage

```c
#include "stdlib/strided/base/min_view_buffer_index.h"
```

#### stdlib_strided_min_view_buffer_index( N, stride, offset )

Returns the minimum accessible index based on a set of provided strided array parameters.

```c
#include "stdlib/strided/base/min_view_buffer_index.h"
#include <stdint.h>

int64_t offset = stdlib_strided_min_view_buffer_index( 3, -2, 10 );
// returns 6
```

The function accepts the following arguments:

-   **N**: `[in] int64_t` number of indexed elements.
-   **stride**: `[in] int64_t` index increment.
-   **offset**: `[in] int64_t` starting index.

```c
int64_t stdlib_strided_min_view_buffer_index( const int64_t N, const int64_t stride, const int64_t offset );
```

</section>

<!-- /.usage -->

<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

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<!-- C API usage examples. -->

<section class="examples">

### Examples

```c
#include "stdlib/strided/base/min_view_buffer_index.h"
#include <stdint.h>
#include <stdio.h>
#include <inttypes.h>

int main( void ) {
    // Specify the number of indexed elements:
    int64_t N = 6;

    // Define a stride:
    int64_t stride = -2;

    // Define an offset:
    int64_t offset = 100;

    // Compute the minimum accessible index:
    int64_t idx = stdlib_strided_min_view_buffer_index( N, stride, offset );

    // Print the results:
    printf( "N: %"PRId64", stride: %"PRId64", offset: %"PRId64" => idx: %"PRId64"\n", N, stride, offset, idx );
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

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</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/strided-base/offset-view`][@stdlib/strided/base/offset-view]</span><span class="delimiter">: </span><span class="description">return a typed array view having the same data type as a provided input typed array and starting at a specified index offset.</span>

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

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---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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