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<div class="title">postfix_evaluation.cpp File Reference</div> </div>
<div class="headertitle"><div class="title">postfix_evaluation.cpp File Reference</div></div>
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<div class="contents">
<p>Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation">Postfix Expression</a>
<p>Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation" target="_blank">Postfix Expression</a>
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;algorithm&gt;</code><br />
<code>#include &lt;array&gt;</code><br />
@@ -113,22 +112,22 @@ Include dependency graph for postfix_evaluation.cpp:</div>
</div>
</div>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d5/d8a/classothers_1_1postfix__expression_1_1_stack.html">others::postfix_expression::Stack</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates an array to be used as stack for storing values. <a href="../../d5/d8a/classothers_1_1postfix__expression_1_1_stack.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="memitem:d0/d6f/namespaceothers"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d0/d6f/namespaceothers.html">others</a></td></tr>
<tr class="memdesc:d0/d6f/namespaceothers"><td class="mdescLeft">&#160;</td><td class="mdescRight">for <code>vector</code> <br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:d4/de6/namespacepostfix__expression"><td class="memItemLeft" align="right" valign="top"> &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/de6/namespacepostfix__expression.html">postfix_expression</a></td></tr>
<tr class="memitem:d4/de6/namespacepostfix__expression"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/de6/namespacepostfix__expression.html">postfix_expression</a></td></tr>
<tr class="memdesc:d4/de6/namespacepostfix__expression"><td class="mdescLeft">&#160;</td><td class="mdescRight">Functions for Postfix Expression algorithm. <br /></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ad77f8c9cc594975756838d498c237cea"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d75/postfix__evaluation_8cpp.html#ad77f8c9cc594975756838d498c237cea">others::postfix_expression::push</a> (float operand, Stack *<a class="el" href="../../d1/dc2/classstack.html">stack</a>)</td></tr>
<tr class="memdesc:ad77f8c9cc594975756838d498c237cea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pushing operand, also called the number in the array to the stack. <a href="../../d7/d75/postfix__evaluation_8cpp.html#ad77f8c9cc594975756838d498c237cea">More...</a><br /></td></tr>
@@ -142,7 +141,7 @@ Functions</h2></td></tr>
<tr class="memitem:a59fd597e0ea394abe027ced4d2ea3338"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d75/postfix__evaluation_8cpp.html#a59fd597e0ea394abe027ced4d2ea3338">others::postfix_expression::evaluate</a> (float a, float b, const <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> &amp;operation, Stack *<a class="el" href="../../d1/dc2/classstack.html">stack</a>)</td></tr>
<tr class="memdesc:a59fd597e0ea394abe027ced4d2ea3338"><td class="mdescLeft">&#160;</td><td class="mdescRight">Evaluate answer using given last two operands from and operation. <a href="../../d7/d75/postfix__evaluation_8cpp.html#a59fd597e0ea394abe027ced4d2ea3338">More...</a><br /></td></tr>
<tr class="separator:a59fd597e0ea394abe027ced4d2ea3338"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae38bd3a177a6d61da3859a281233bbe1"><td class="memTemplParams" colspan="2">template&lt;std::size_t N&gt; </td></tr>
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<tr class="memitem:ae38bd3a177a6d61da3859a281233bbe1"><td class="memTemplItemLeft" align="right" valign="top">float&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a> (<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>, N &gt; input)</td></tr>
<tr class="memdesc:ae38bd3a177a6d61da3859a281233bbe1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Postfix Evaluation algorithm to compute the value from given input array. <a href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">More...</a><br /></td></tr>
<tr class="separator:ae38bd3a177a6d61da3859a281233bbe1"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation">Postfix Expression</a> </p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/Darshana-Sarma">Darshana Sarma</a></dd></dl>
<div class="textblock"><p >Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation" target="_blank">Postfix Expression</a> </p>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/Darshana-Sarma" target="_blank">Darshana Sarma</a></dd></dl>
<p>Create a stack to store operands (or values). Scan the given expression and do following for every scanned element. If the element is a number, push it into the stack If the element is a operator, pop operands for the operator from stack. Evaluate the operator and push the result back to the stack When the expression is ended, the number in the stack is the final answer </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a59fd597e0ea394abe027ced4d2ea3338"></a>
<a id="a59fd597e0ea394abe027ced4d2ea3338" name="a59fd597e0ea394abe027ced4d2ea3338"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a59fd597e0ea394abe027ced4d2ea3338">&#9670;&nbsp;</a></span>evaluate()</h2>
<div class="memitem">
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<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div></div>
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<div class="ttc" id="aclassstack_html"><div class="ttname"><a href="../../d1/dc2/classstack.html">stack</a></div><div class="ttdef"><b>Definition:</b> stack.h:26</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a4c27f949c9d6659be9f5bd2ccbe1360a">&#9670;&nbsp;</a></span>is_number()</h2>
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<dl class="section return"><dt>Returns</dt><dd>bool boolean value if string is number </dd></dl>
<div class="fragment"><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">return</span> !s.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/empty.html">empty</a>() &amp;&amp; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/all_any_none_of.html">std::all_of</a>(s.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>(), s.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/end.html">end</a>(), ::isdigit);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> {</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> !s.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/empty.html">empty</a>() &amp;&amp; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/all_any_none_of.html">std::all_of</a>(s.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">begin</a>(), s.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/end.html">end</a>(), ::isdigit);</div>
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<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/begin.html">std::string::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&nbsp;</a></span>main()</h2>
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<p>Main function. </p>
<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
<div class="fragment"><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#a6a8eeb7d346d5cd6335d9780fb7c0f15">test_function_1</a>();</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a>();</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; </div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\nTest implementations passed!\n&quot;</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> {</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#a6a8eeb7d346d5cd6335d9780fb7c0f15">test_function_1</a>();</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a>();</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\nTest implementations passed!\n&quot;</span>;</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span>}</div>
<div class="ttc" id="apostfix__evaluation_8cpp_html_a5b97d12e8b61484f756a8721992bfae1"><div class="ttname"><a href="../../d7/d75/postfix__evaluation_8cpp.html#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a></div><div class="ttdeci">static void test_function_2()</div><div class="ttdoc">Test function 2 with input array {'1', '2', '+', '2', '/', '5', '*', '7', '+'}.</div><div class="ttdef"><b>Definition:</b> postfix_evaluation.cpp:159</div></div>
<div class="ttc" id="apostfix__evaluation_8cpp_html_a6a8eeb7d346d5cd6335d9780fb7c0f15"><div class="ttname"><a href="../../d7/d75/postfix__evaluation_8cpp.html#a6a8eeb7d346d5cd6335d9780fb7c0f15">test_function_1</a></div><div class="ttdeci">static void test_function_1()</div><div class="ttdoc">Test function 1 with input array {'2', '3', '1', '*', '+', '9', '-'}.</div><div class="ttdef"><b>Definition:</b> postfix_evaluation.cpp:146</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a421baa2002a64bc0bfc3e1b64800d734">&#9670;&nbsp;</a></span>pop()</h2>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>operand float on top of stack </dd></dl>
<div class="fragment"><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordtype">float</span> operand = <a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>];</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>--;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keywordflow">return</span> operand;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> {</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">float</span> operand = <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_function" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>];</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>--;</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">return</span> operand;</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
<div class="ttc" id="aclassstack_html_a5b64337ec34b12e98458bb9b9d5f8f83"><div class="ttname"><a href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack::stack</a></div><div class="ttdeci">stack()</div><div class="ttdef"><b>Definition:</b> stack.h:41</div></div>
<div class="ttc" id="aclassstack_html_a7289037c059aaad492b4d68e6bd54453"><div class="ttname"><a href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stack::stackTop</a></div><div class="ttdeci">node&lt; Type &gt; * stackTop</div><div class="ttdef"><b>Definition:</b> stack.h:146</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae38bd3a177a6d61da3859a281233bbe1">&#9670;&nbsp;</a></span>postfix_evaluation()</h2>
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<div class="memtemplate">
template&lt;std::size_t N&gt; </div>
template&lt;<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> N&gt; </div>
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<td class="memname">float others::postfix_expression::postfix_evaluation </td>
@@ -401,28 +400,28 @@ template&lt;std::size_t N&gt; </div>
</dd>
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<dl class="section return"><dt>Returns</dt><dd>stack[stackTop] returns the top value from the stack </dd></dl>
<div class="fragment"><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; {</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; Stack <a class="code" href="../../dc/dc5/paranthesis__matching_8cpp.html#aa37d24a036d239b3b528f13b9de880c7">stack</a>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordtype">int</span> j = 0;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordflow">while</span> (j &lt; N) {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> scan = input[j];</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#a4c27f949c9d6659be9f5bd2ccbe1360a">is_number</a>(scan)) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <a class="code" href="../../dc/dc5/paranthesis__matching_8cpp.html#aae41c72130114bf31204cde6873b6095">push</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/stof.html">std::stof</a>(scan), &amp;<a class="code" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordtype">float</span> op2 = <a class="code" href="../../dc/dc5/paranthesis__matching_8cpp.html#a6d25c7dfbfeb52c3cb9d1b56ab49b664">pop</a>(&amp;<a class="code" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">float</span> op1 = <a class="code" href="../../dc/dc5/paranthesis__matching_8cpp.html#a6d25c7dfbfeb52c3cb9d1b56ab49b664">pop</a>(&amp;<a class="code" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#a59fd597e0ea394abe027ced4d2ea3338">evaluate</a>(op1, op2, scan, &amp;<a class="code" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; j++;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; }</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code" href="../../d1/dc2/classstack.html">stack</a>.<a class="code" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code" href="../../d1/dc2/classstack.html">stack</a>.<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>] &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d1/dc2/classstack.html">stack</a>.<a class="code" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code" href="../../d1/dc2/classstack.html">stack</a>.<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>];</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> {</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> Stack <a class="code hl_variable" href="../../dc/dc5/paranthesis__matching_8cpp.html#aa37d24a036d239b3b528f13b9de880c7">stack</a>;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordtype">int</span> j = 0;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">while</span> (j &lt; N) {</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> scan = input[j];</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#a4c27f949c9d6659be9f5bd2ccbe1360a">is_number</a>(scan)) {</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <a class="code hl_function" href="../../dc/dc5/paranthesis__matching_8cpp.html#aae41c72130114bf31204cde6873b6095">push</a>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/stof.html">std::stof</a>(scan), &amp;<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordtype">float</span> op2 = <a class="code hl_function" href="../../dc/dc5/paranthesis__matching_8cpp.html#a6d25c7dfbfeb52c3cb9d1b56ab49b664">pop</a>(&amp;<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">float</span> op1 = <a class="code hl_function" href="../../dc/dc5/paranthesis__matching_8cpp.html#a6d25c7dfbfeb52c3cb9d1b56ab49b664">pop</a>(&amp;<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#a59fd597e0ea394abe027ced4d2ea3338">evaluate</a>(op1, op2, scan, &amp;<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> j++;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>] &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">return</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>];</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span>}</div>
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<div class="ttc" id="aparanthesis__matching_8cpp_html_a6d25c7dfbfeb52c3cb9d1b56ab49b664"><div class="ttname"><a href="../../dc/dc5/paranthesis__matching_8cpp.html#a6d25c7dfbfeb52c3cb9d1b56ab49b664">pop</a></div><div class="ttdeci">char pop()</div><div class="ttdoc">pop a byte out of stack variable</div><div class="ttdef"><b>Definition:</b> paranthesis_matching.cpp:29</div></div>
<div class="ttc" id="aparanthesis__matching_8cpp_html_aa37d24a036d239b3b528f13b9de880c7"><div class="ttname"><a href="../../dc/dc5/paranthesis__matching_8cpp.html#aa37d24a036d239b3b528f13b9de880c7">stack</a></div><div class="ttdeci">char stack[MAX]</div><div class="ttdef"><b>Definition:</b> paranthesis_matching.cpp:20</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ad77f8c9cc594975756838d498c237cea">&#9670;&nbsp;</a></span>push()</h2>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
<div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>++;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>] = operand;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>++;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_function" href="../../d1/dc2/classstack.html#a5b64337ec34b12e98458bb9b9d5f8f83">stack</a>[<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>-&gt;<a class="code hl_variable" href="../../d1/dc2/classstack.html#a7289037c059aaad492b4d68e6bd54453">stackTop</a>] = operand;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a8eeb7d346d5cd6335d9780fb7c0f15">&#9670;&nbsp;</a></span>test_function_1()</h2>
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<p>Test function 1 with input array {'2', '3', '1', '*', '+', '9', '-'}. </p>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
<div class="fragment"><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; {</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::string, 7&gt;</a> input = {<span class="stringliteral">&quot;2&quot;</span>, <span class="stringliteral">&quot;3&quot;</span>, <span class="stringliteral">&quot;1&quot;</span>, <span class="stringliteral">&quot;*&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>, <span class="stringliteral">&quot;9&quot;</span>, <span class="stringliteral">&quot;-&quot;</span>};</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordtype">float</span> answer = <a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; assert(answer == -4);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> {</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::string, 7&gt;</a> input = {<span class="stringliteral">&quot;2&quot;</span>, <span class="stringliteral">&quot;3&quot;</span>, <span class="stringliteral">&quot;1&quot;</span>, <span class="stringliteral">&quot;*&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>, <span class="stringliteral">&quot;9&quot;</span>, <span class="stringliteral">&quot;-&quot;</span>};</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">float</span> answer = <a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> assert(answer == -4);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>}</div>
<div class="ttc" id="aarray_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a></div></div>
<div class="ttc" id="apostfix__evaluation_8cpp_html_ae38bd3a177a6d61da3859a281233bbe1"><div class="ttname"><a href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a></div><div class="ttdeci">float postfix_evaluation(std::array&lt; std::string, N &gt; input)</div><div class="ttdoc">Postfix Evaluation algorithm to compute the value from given input array.</div><div class="ttdef"><b>Definition:</b> postfix_evaluation.cpp:115</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a5b97d12e8b61484f756a8721992bfae1">&#9670;&nbsp;</a></span>test_function_2()</h2>
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<p>Test function 2 with input array {'1', '2', '+', '2', '/', '5', '*', '7', '+'}. </p>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
<div class="fragment"><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; {</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::string, 9&gt;</a> input = {<span class="stringliteral">&quot;100&quot;</span>, <span class="stringliteral">&quot;200&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>, <span class="stringliteral">&quot;2&quot;</span>, <span class="stringliteral">&quot;/&quot;</span>,</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="stringliteral">&quot;5&quot;</span>, <span class="stringliteral">&quot;*&quot;</span>, <span class="stringliteral">&quot;7&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>};</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordtype">float</span> answer = <a class="code" href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; assert(answer == 757);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;}</div>
<div class="fragment"><div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> {</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::string, 9&gt;</a> input = {<span class="stringliteral">&quot;100&quot;</span>, <span class="stringliteral">&quot;200&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>, <span class="stringliteral">&quot;2&quot;</span>, <span class="stringliteral">&quot;/&quot;</span>,</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="stringliteral">&quot;5&quot;</span>, <span class="stringliteral">&quot;*&quot;</span>, <span class="stringliteral">&quot;7&quot;</span>, <span class="stringliteral">&quot;+&quot;</span>};</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">float</span> answer = <a class="code hl_function" href="../../d7/d75/postfix__evaluation_8cpp.html#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> assert(answer == 757);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span>}</div>
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