Pagination Fucntion

<?php
/**
 * Custom template tags for this theme.
 *
 * Eventually, some of the functionality here could be replaced by core features.
 *
 * @package minimax
 */

if ( ! function_exists( 'minimax_posts_navigation' ) ) :
/**
 * Display navigation to next/previous set of posts when applicable.
 *
 * @todo Remove this function when WordPress 4.3 is released.
 */
function minimax_posts_navigation() {
    // Don't print empty markup if there's only one page.
    if ( $GLOBALS['wp_query']->max_num_pages < 2 ) {
        return;
    }
    ?>
<nav class="navigation paging-navigation" role="navigation">
    <h1 class="sr-only"><?php _e( 'Posts navigation', 'bootstrapwp' ); ?></h1>
    <ul class="pager">

        <?php if ( get_next_posts_link() ) : ?>
        <li class="previous"><?php next_posts_link( __( '<span class="meta-nav">&larr;</span> Older posts', 'bootstrapwp' ) ); ?></li>
        <?php endif; ?>

        <?php if ( get_previous_posts_link() ) : ?>
        <li class="next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">&rarr;</span>', 'bootstrapwp' ) ); ?></li>
        <?php endif; ?>

    </ul><!-- .nav-links -->
</nav><!-- .navigation -->
    <?php
}
endif;

if ( ! function_exists( 'minimax_post_navigation' ) ) :
/**
 * Display navigation to next/previous post when applicable.
 *
 * @todo Remove this function when WordPress 4.3 is released.
 */
function minimax_post_navigation() {
    // Don't print empty markup if there's nowhere to navigate.
    $previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
    $next     = get_adjacent_post( false, '', false );

    if ( ! $next && ! $previous ) {
        return;
    }
    ?>
<nav class="navigation post-navigation" role="navigation">
    <h1 class="sr-only"><?php _e( 'Post navigation', 'bootstrapwp' ); ?></h1>
    <ul class="pager">
        <?php
    previous_post_link( '<li class="previous">%link</li>', _x( '<span class="meta-nav">&larr;</span>&nbsp;%title', 'Previous post link', 'bootstrapwp' ) );
    next_post_link(     '<li class="next">%link</li>',     _x( '%title&nbsp;<span class="meta-nav">&rarr;</span>', 'Next post link',     'bootstrapwp' ) );
        ?>
    </ul><!-- .nav-links -->
</nav><!-- .navigation -->
    <?php
}
endif;