<a id="0x1_base16"></a>

Module 0x1::base16

• Function hex_char_to_u8
• Function base16_utf8_to_vec_u8
• Specification
  • Function base16_utf8_to_vec_u8

<pre><code></code></pre>

<a id="0x1_base16_hex_char_to_u8"></a>

Function hex_char_to_u8

<pre><code><b>public</b> <b>fun</b> <a href="base16.md#0x1_base16_hex_char_to_u8">hex_char_to_u8</a>(c: u8): u8 </code></pre> <details> <summary>Implementation</summary> <pre><code><b>public</b> <b>fun</b> <a href="base16.md#0x1_base16_hex_char_to_u8">hex_char_to_u8</a>(c: u8): u8 { <b>if</b> (c &gt;= 48 && c &lt;= 57) { // '0' <b>to</b> '9' c - 48 } <b>else</b> <b>if</b> (c &gt;= 65 && c &lt;= 70) { // 'A' <b>to</b> 'F' c - 55 } <b>else</b> <b>if</b> (c &gt;= 97 && c &lt;= 102) { // 'a' <b>to</b> 'f' c - 87 } <b>else</b> { <b>abort</b> 1 } } </code></pre> </details>

<a id="0x1_base16_base16_utf8_to_vec_u8"></a>

Function base16_utf8_to_vec_u8

<pre><code><b>public</b> <b>fun</b> <a href="base16.md#0x1_base16_base16_utf8_to_vec_u8">base16_utf8_to_vec_u8</a>(str: <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt;): <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt; </code></pre> <details> <summary>Implementation</summary> <pre><code><b>public</b> <b>fun</b> <a href="base16.md#0x1_base16_base16_utf8_to_vec_u8">base16_utf8_to_vec_u8</a>(str: <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt;): <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt; { <b>let</b> result = <a href="../../move-stdlib/doc/vector.md#0x1_vector_empty">vector::empty</a>&lt;u8&gt;(); <b>let</b> i = 0; <b>while</b> (i &lt; <a href="../../move-stdlib/doc/vector.md#0x1_vector_length">vector::length</a>(&str)) { <b>let</b> c1 = <a href="../../move-stdlib/doc/vector.md#0x1_vector_borrow">vector::borrow</a>(&str, i); <b>let</b> c2 = <a href="../../move-stdlib/doc/vector.md#0x1_vector_borrow">vector::borrow</a>(&str, i + 1); <b>let</b> byte = <a href="base16.md#0x1_base16_hex_char_to_u8">hex_char_to_u8</a>(*c1) &lt;&lt; 4 | <a href="base16.md#0x1_base16_hex_char_to_u8">hex_char_to_u8</a>(*c2); <a href="../../move-stdlib/doc/vector.md#0x1_vector_push_back">vector::push_back</a>(&<b>mut</b> result, byte); i = i + 2; }; result } </code></pre> </details>

<a id="@Specification_0"></a>

Specification

<a id="@Specification_0_base16_utf8_to_vec_u8"></a>

Function base16_utf8_to_vec_u8

<pre><code><b>public</b> <b>fun</b> <a href="base16.md#0x1_base16_base16_utf8_to_vec_u8">base16_utf8_to_vec_u8</a>(str: <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt;): <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt; </code></pre> <pre><code><b>pragma</b> opaque; <b>ensures</b> [abstract] result == <a href="base16.md#0x1_base16_spec_base16_utf8_to_vec_u8">spec_base16_utf8_to_vec_u8</a>(str); </code></pre>

<a id="0x1_base16_spec_base16_utf8_to_vec_u8"></a>

<pre><code><b>fun</b> <a href="base16.md#0x1_base16_spec_base16_utf8_to_vec_u8">spec_base16_utf8_to_vec_u8</a>(str: <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt;): <a href="../../move-stdlib/doc/vector.md#0x1_vector">vector</a>&lt;u8&gt;; </code></pre>