---

layout: table_wrappers

---

<htmllang="{{ site.lang | default:"en-US" }}">

{% include head.html %}

<scripttype="text/javascript">

fz("register","website",{id:"figfqiucisqvbkzruorbjefvctzljtvfeo",trackLinks:true,timeOnPage:true});

<divclass="page-wrap">

<divclass="side-bar">

<divclass="site-header">

<ahref="{{ site.url }}{{ site.baseurl }}"class="site-title lh-tight">{% include title.html %}</a>

<buttonclass="menu-button fs-3 js-main-nav-trigger"data-text-toggle="Hide"type="button">Menu</button>

<divclass="navigation main-nav js-main-nav">

{% include nav.html %}

<footerclass="site-footer">

<pclass="text-small text-grey-dk-000 mb-4">This site uses<ahref="https://github.com/pmarsceill/just-the-docs">Just the Docs</a>, a documentation theme for Jekyll.</p>

<divclass="main-content-wrap js-main-content"tabindex="0">

<divclass="main-content">

<divclass="page-header js-page-header">

{% if site.search_enabled != false %}

<divclass="search">

<divclass="search-input-wrap">

<inputtype="text"class="js-search-input search-input"tabindex="0"placeholder="Search {{ site.title }}"aria-label="Search {{ site.title }}"autocomplete="off">

<svgwidth="14"height="14"viewBox="0 0 28 28"xmlns="http://www.w3.org/2000/svg"class="search-icon"><title>Search</title><gfill-rule="nonzero"><pathd="M17.332 20.735c-5.537 0-10-4.6-10-10.247 0-5.646 4.463-10.247 10-10.247 5.536 0 10 4.601 10 10.247s-4.464 10.247-10 10.247zm0-4c3.3 0 6-2.783 6-6.247 0-3.463-2.7-6.247-6-6.247s-6 2.784-6 6.247c0 3.464 2.7 6.247 6 6.247z"/><pathd="M11.672 13.791L.192 25.271 3.02 28.1 14.5 16.62z"/></g></svg>

<divclass="js-search-results search-results-wrap"></div>

{% endif %}

{% if site.aux_links != nil %}

<ulclass="list-style-none text-small aux-nav">

{% for link in site.aux_links %}

<liclass="d-inline-block my-0{% unless forloop.last %} mr-2{% endunless %}"><ahref="{{ link.last }}">{{ link.first }}</a></li>

{% endfor %}

{% endif %}

<divclass="page">

{% unless page.url == "/" %}

{% if page.parent %}

<navclass="breadcrumb-nav">

<olclass="breadcrumb-nav-list">

{% if page.grand_parent %}

<liclass="breadcrumb-nav-list-item"><ahref="{{ first_level_url }}">{{ page.grand_parent }}</a></li>

<liclass="breadcrumb-nav-list-item"><ahref="{{ second_level_url }}">{{ page.parent }}</a></li>

{% else %}

<liclass="breadcrumb-nav-list-item"><ahref="{{ first_level_url }}">{{ page.parent }}</a></li>

{% endif %}

<liclass="breadcrumb-nav-list-item"><span>{{ page.title }}</span></li>

{% endif %}

{% endunless %}

<divid="main-content"class="page-content"role="main">

{% if site.heading_anchors != false %}

{% include vendor/anchor_headings.html html=content beforeHeading = "true" anchorBody="<svgclass=\"d-inline-block v-align-middle\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"18\" height=\"18\" aria-hidden=\"true\"><pathfill-rule=\"evenodd\" d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg>" anchorClass="anchor-heading" %}

{% else %}

{{ content }}

{% endif %}

{% if page.has_children == true and page.has_toc != false %}

<h2class="text-delta">Table of contents</h2>

{% assign children_list = site.pages | sort:"nav_order" %}

{% for child in children_list %}

{% if child.parent == page.title and child.title != page.title %}

<ahref="{{ child.url | absolute_url }}">{{ child.title }}</a>

{% endif %}

{% endfor %}

{% endif %}

{% if site.footer_content != nil %}

<footerrole="contentinfo">

<pclass="text-small text-grey-dk-000 mb-0">{{ site.footer_content }}</p>

{% endif %}

layout:default

title:API Reference

nav_order:6

redirect_to:"/docs/reference/html/index.html"

redirect_to:"/docs/reference/1.0/html/index.html"

Open Jinja2C++ API reference:[./reference/html/index.html](./reference/1.0/html/index.html)

Open Jinja2C++ API reference:[./reference/1.0/html/index.html](./reference/1.0/html/index.html)

- Macros ('macro', 'call').

- Rich error reporting.

[View it on GitHub](https://github.com/jinja2cpp/Jinja2Cpp){: .btn .btn-primary .fs-5 .mb-4 .mb-md-0 .mr-2 }[View it on Conan](https://bintray.com/manu343726/conan-packages/jinja2cpp%3AManu343726){: .btn .fs-5 .mb-4 .mb-md-0 }

[View it on GitHub](https://github.com/jinja2cpp/Jinja2Cpp){: .btn .btn-primary .fs-5 .mb-4 .mb-md-0 .mr-2 }[View it on Conan](https://bintray.com/beta/#/flexferrum/conan-packages/jinja2cpp:flexferrum?tab=overview){: .btn .fs-5 .mb-4 .mb-md-0 }

{: .no_toc }

File[include/jinja2cpp/value_ptr.hpp](https://github.com/jinja2cpp/Jinja2Cpp/blob/master/include/jinja2cpp/value_ptr.hpp) Copyright © 2017-2019 by[**Martin Moene**](https://github.com/martinmoene)

File[src/lexertk.h](https://github.com/jinja2cpp/Jinja2Cpp/blob/master/src/lexertk.h) Originally copyright © 2001 by Arash Partow

File[src/lexertk.h](https://github.com/jinja2cpp/Jinja2Cpp/blob/master/src/lexertk.h) Originally copyright © 2001 by Arash Partow