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<div class="headertitle"><div class="title">postfix_evaluation.cpp File Reference</div></div>
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<div class="contents">
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<p>Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation" target="_blank">Postfix Expression</a>
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include <algorithm></code><br />
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<code>#include <array></code><br />
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<code>#include <cassert></code><br />
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<code>#include <iostream></code><br />
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<code>#include <stack></code><br />
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<code>#include <string></code><br />
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</div><div class="textblock"><div class="dynheader">
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Include dependency graph for postfix_evaluation.cpp:</div>
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<div class="dyncontent">
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<p><a href="../../d7/d75/postfix__evaluation_8cpp_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-namespaces" class="groupheader"><a id="namespaces" name="namespaces"></a>
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Namespaces</h2></td></tr>
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<tr class="memitem:others" id="r_others"><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d0/d6f/namespaceothers.html">others</a></td></tr>
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<tr class="memdesc:d0/d6f/namespaceothers"><td class="mdescLeft"> </td><td class="mdescRight">for <span class="tt">vector</span> <br /></td></tr>
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<tr class="memitem:postfix_5Fexpression" id="r_postfix_5Fexpression"><td class="memItemLeft" align="right" valign="top">namespace  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/de6/namespacepostfix__expression.html">postfix_expression</a></td></tr>
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<tr class="memdesc:d4/de6/namespacepostfix__expression"><td class="mdescLeft"> </td><td class="mdescRight">Functions for Postfix Expression algorithm. <br /></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-func-members" class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:a4c27f949c9d6659be9f5bd2ccbe1360a" id="r_a4c27f949c9d6659be9f5bd2ccbe1360a"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#a4c27f949c9d6659be9f5bd2ccbe1360a">others::postfix_expression::is_number</a> (const std::string &s)</td></tr>
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<tr class="memdesc:a4c27f949c9d6659be9f5bd2ccbe1360a"><td class="mdescLeft"> </td><td class="mdescRight">Checks if scanned string is a number. <br /></td></tr>
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<tr class="memitem:a19d995518723c1bc69718c3c33381e30" id="r_a19d995518723c1bc69718c3c33381e30"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="#a19d995518723c1bc69718c3c33381e30">others::postfix_expression::evaluate</a> (float a, float b, const std::string &operation, std::stack< float > &<a class="el" href="../../d1/dc2/classstack.html">stack</a>)</td></tr>
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<tr class="memdesc:a19d995518723c1bc69718c3c33381e30"><td class="mdescLeft"> </td><td class="mdescRight">Evaluate answer using given last two operands from and operation. <br /></td></tr>
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<tr class="memitem:ae38bd3a177a6d61da3859a281233bbe1" id="r_ae38bd3a177a6d61da3859a281233bbe1"><td class="memTemplParams" colspan="2">template<std::size_t N> </td></tr>
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<tr class="memitem:ae38bd3a177a6d61da3859a281233bbe1 template"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a> (std::array< std::string, N > input)</td></tr>
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<tr class="memdesc:ae38bd3a177a6d61da3859a281233bbe1"><td class="mdescLeft"> </td><td class="mdescRight">Postfix Evaluation algorithm to compute the value from given input array. <br /></td></tr>
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<tr class="memitem:a6a8eeb7d346d5cd6335d9780fb7c0f15" id="r_a6a8eeb7d346d5cd6335d9780fb7c0f15"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="#a6a8eeb7d346d5cd6335d9780fb7c0f15">test_function_1</a> ()</td></tr>
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<tr class="memdesc:a6a8eeb7d346d5cd6335d9780fb7c0f15"><td class="mdescLeft"> </td><td class="mdescRight">Test function 1 with input array {'2', '3', '1', '*', '+', '9', '-'}. <br /></td></tr>
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<tr class="memitem:a5b97d12e8b61484f756a8721992bfae1" id="r_a5b97d12e8b61484f756a8721992bfae1"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a> ()</td></tr>
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<tr class="memdesc:a5b97d12e8b61484f756a8721992bfae1"><td class="mdescLeft"> </td><td class="mdescRight">Test function 2 with input array {'100', '200', '+', '2', '/', '5', '*', '7', '+'}. <br /></td></tr>
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<tr class="memitem:a29c6172e7ccef1d93c1d116f407928dc" id="r_a29c6172e7ccef1d93c1d116f407928dc"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="#a29c6172e7ccef1d93c1d116f407928dc">test_function_3</a> ()</td></tr>
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<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4" id="r_ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
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<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft"> </td><td class="mdescRight">Main function. <br /></td></tr>
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</table>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Evaluation of <a href="https://en.wikipedia.org/wiki/Reverse_Polish_notation" target="_blank">Postfix Expression</a> </p>
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<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/Darshana-Sarma" target="_blank">Darshana Sarma</a></dd></dl>
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<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>
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<p class="definition">Definition in file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Function Documentation</h2>
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<a id="a19d995518723c1bc69718c3c33381e30" name="a19d995518723c1bc69718c3c33381e30"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a19d995518723c1bc69718c3c33381e30">◆ </a></span>evaluate()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void others::postfix_expression::evaluate </td>
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<td>(</td>
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<td class="paramtype">float</td> <td class="paramname"><span class="paramname"><em>a</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">float</td> <td class="paramname"><span class="paramname"><em>b</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const std::string &</td> <td class="paramname"><span class="paramname"><em>operation</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">std::stack< float > &</td> <td class="paramname"><span class="paramname"><em>stack</em></span> )</td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Evaluate answer using given last two operands from and operation. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">a</td><td>second last added operand which will be used for evaluation </td></tr>
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<tr><td class="paramname">b</td><td>last added operand which will be used for evaluation </td></tr>
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<tr><td class="paramname">operation</td><td>to be performed with respective floats </td></tr>
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<tr><td class="paramname">stack</td><td>containing numbers </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00049">49</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 50</span> {</div>
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<div class="line"><span class="lineno"> 51</span> <span class="keywordtype">float</span> c = 0;</div>
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<div class="line"><span class="lineno"> 52</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *op = operation.c_str();</div>
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<div class="line"><span class="lineno"> 53</span> <span class="keywordflow">switch</span> (*op) {</div>
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<div class="line"><span class="lineno"> 54</span> <span class="keywordflow">case</span> <span class="charliteral">'+'</span>:</div>
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<div class="line"><span class="lineno"> 55</span> c = a + b; <span class="comment">// Addition of numbers</span></div>
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<div class="line"><span class="lineno"> 56</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(c);</div>
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<div class="line"><span class="lineno"> 57</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><span class="lineno"> 58</span> </div>
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<div class="line"><span class="lineno"> 59</span> <span class="keywordflow">case</span> <span class="charliteral">'-'</span>:</div>
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<div class="line"><span class="lineno"> 60</span> c = a - b; <span class="comment">// Subtraction of numbers</span></div>
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<div class="line"><span class="lineno"> 61</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(c);</div>
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<div class="line"><span class="lineno"> 62</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><span class="lineno"> 63</span> </div>
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<div class="line"><span class="lineno"> 64</span> <span class="keywordflow">case</span> <span class="charliteral">'*'</span>:</div>
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<div class="line"><span class="lineno"> 65</span> c = a * b; <span class="comment">// Multiplication of numbers</span></div>
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<div class="line"><span class="lineno"> 66</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(c);</div>
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<div class="line"><span class="lineno"> 67</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><span class="lineno"> 68</span> </div>
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<div class="line"><span class="lineno"> 69</span> <span class="keywordflow">case</span> <span class="charliteral">'/'</span>:</div>
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<div class="line"><span class="lineno"> 70</span> c = a / b; <span class="comment">// Division of numbers</span></div>
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<div class="line"><span class="lineno"> 71</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(c);</div>
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<div class="line"><span class="lineno"> 72</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><span class="lineno"> 73</span> </div>
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<div class="line"><span class="lineno"> 74</span> <span class="keywordflow">default</span>:</div>
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<div class="line"><span class="lineno"> 75</span> std::cout << <span class="stringliteral">"Operator not defined\n"</span>;</div>
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<div class="line"><span class="lineno"> 76</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><span class="lineno"> 77</span> }</div>
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<div class="line"><span class="lineno"> 78</span>}</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="ttdoc">for std::invalid_argument</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00019">stack.hpp:19</a></div></div>
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<div class="ttc" id="aclassstack_html_a90df277532c23519aa7ac3c08ed90a1d"><div class="ttname"><a href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">stack::push</a></div><div class="ttdeci">void push(const value_type &item)</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00047">stack.hpp:47</a></div></div>
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</div><!-- fragment -->
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</div>
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<a id="a4c27f949c9d6659be9f5bd2ccbe1360a" name="a4c27f949c9d6659be9f5bd2ccbe1360a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a4c27f949c9d6659be9f5bd2ccbe1360a">◆ </a></span>is_number()</h2>
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<td class="memname">bool others::postfix_expression::is_number </td>
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<td>(</td>
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<td class="paramtype">const std::string &</td> <td class="paramname"><span class="paramname"><em>s</em></span></td><td>)</td>
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<p>Checks if scanned string is a number. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">s</td><td>scanned string </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>bool boolean value if string is number </dd></dl>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00037">37</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 37</span> {</div>
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<div class="line"><span class="lineno"> 38</span> <span class="keywordflow">return</span> !s.empty() && std::all_of(s.begin(), s.end(), ::isdigit);</div>
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<div class="line"><span class="lineno"> 39</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">◆ </a></span>main()</h2>
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<p>Main function. </p>
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<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00156">156</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 156</span> {</div>
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<div class="line"><span class="lineno"> 157</span> <a class="code hl_function" href="#a6a8eeb7d346d5cd6335d9780fb7c0f15">test_function_1</a>();</div>
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<div class="line"><span class="lineno"> 158</span> <a class="code hl_function" href="#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a>();</div>
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<div class="line"><span class="lineno"> 159</span> test_function_3();</div>
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<div class="line"><span class="lineno"> 160</span> </div>
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<div class="line"><span class="lineno"> 161</span> std::cout << <span class="stringliteral">"\nTest implementations passed!\n"</span>;</div>
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<div class="line"><span class="lineno"> 162</span> </div>
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<div class="line"><span class="lineno"> 163</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><span class="lineno"> 164</span>}</div>
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<div class="ttc" id="apostfix__evaluation_8cpp_html_a5b97d12e8b61484f756a8721992bfae1"><div class="ttname"><a href="#a5b97d12e8b61484f756a8721992bfae1">test_function_2</a></div><div class="ttdeci">static void test_function_2()</div><div class="ttdoc">Test function 2 with input array {'100', '200', '+', '2', '/', '5', '*', '7', '+'}...</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00133">postfix_evaluation.cpp:133</a></div></div>
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<div class="ttc" id="apostfix__evaluation_8cpp_html_a6a8eeb7d346d5cd6335d9780fb7c0f15"><div class="ttname"><a href="#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> <a href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00120">postfix_evaluation.cpp:120</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae38bd3a177a6d61da3859a281233bbe1">◆ </a></span>postfix_evaluation()</h2>
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template<std::size_t N> </div>
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<td class="memname">float others::postfix_expression::postfix_evaluation </td>
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<p>Postfix Evaluation algorithm to compute the value from given input array. </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>stack[stackTop] returns the top value from the stack </dd></dl>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00088">88</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 88</span> {</div>
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<div class="line"><span class="lineno"> 89</span> std::stack<float> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>;</div>
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<div class="line"><span class="lineno"> 90</span> <span class="keywordtype">int</span> j = 0;</div>
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<div class="line"><span class="lineno"> 91</span> </div>
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<div class="line"><span class="lineno"> 92</span> <span class="keywordflow">while</span> (j < N) {</div>
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<div class="line"><span class="lineno"> 93</span> std::string scan = input[j];</div>
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<div class="line"><span class="lineno"> 94</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="#a4c27f949c9d6659be9f5bd2ccbe1360a">is_number</a>(scan)) {</div>
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<div class="line"><span class="lineno"> 95</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(std::stof(scan));</div>
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<div class="line"><span class="lineno"> 96</span> </div>
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<div class="line"><span class="lineno"> 97</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><span class="lineno"> 98</span> <span class="keyword">const</span> <span class="keywordtype">float</span> op2 = <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">top</a>();</div>
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<div class="line"><span class="lineno"> 99</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a3647fb4418890f19e0dc414b8092b8b0">pop</a>();</div>
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<div class="line"><span class="lineno"> 100</span> <span class="keyword">const</span> <span class="keywordtype">float</span> op1 = <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">top</a>();</div>
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<div class="line"><span class="lineno"> 101</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a3647fb4418890f19e0dc414b8092b8b0">pop</a>();</div>
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<div class="line"><span class="lineno"> 102</span> </div>
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<div class="line"><span class="lineno"> 103</span> evaluate(op1, op2, scan, <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>);</div>
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<div class="line"><span class="lineno"> 104</span> }</div>
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<div class="line"><span class="lineno"> 105</span> j++;</div>
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<div class="line"><span class="lineno"> 106</span> }</div>
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<div class="line"><span class="lineno"> 107</span> </div>
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<div class="line"><span class="lineno"> 108</span> std::cout << <a class="code hl_variable" href="../../dc/dc5/paranthesis__matching_8cpp.html#aa37d24a036d239b3b528f13b9de880c7">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">top</a>() << <span class="stringliteral">"\n"</span>;</div>
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<div class="line"><span class="lineno"> 109</span> </div>
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<div class="line"><span class="lineno"> 110</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="../../dc/dc5/paranthesis__matching_8cpp.html#aa37d24a036d239b3b528f13b9de880c7">stack</a>.top();</div>
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<div class="line"><span class="lineno"> 111</span>}</div>
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<div class="ttc" id="aclassstack_html_a3647fb4418890f19e0dc414b8092b8b0"><div class="ttname"><a href="../../d1/dc2/classstack.html#a3647fb4418890f19e0dc414b8092b8b0">stack::pop</a></div><div class="ttdeci">void pop()</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00062">stack.hpp:62</a></div></div>
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<div class="ttc" id="aclassstack_html_ae09630c4384903d187801921b2ddc709"><div class="ttname"><a href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">stack::top</a></div><div class="ttdeci">value_type top() const</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00056">stack.hpp:56</a></div></div>
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<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> <a href="../../dc/dc5/paranthesis__matching_8cpp_source.html#l00020">paranthesis_matching.cpp:20</a></div></div>
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<div class="ttc" id="apostfix__evaluation_8cpp_html_a4c27f949c9d6659be9f5bd2ccbe1360a"><div class="ttname"><a href="#a4c27f949c9d6659be9f5bd2ccbe1360a">others::postfix_expression::is_number</a></div><div class="ttdeci">bool is_number(const std::string &s)</div><div class="ttdoc">Checks if scanned string is a number.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00037">postfix_evaluation.cpp:37</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a8eeb7d346d5cd6335d9780fb7c0f15">◆ </a></span>test_function_1()</h2>
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<p>Test function 1 with input array {'2', '3', '1', '*', '+', '9', '-'}. </p>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00120">120</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 120</span> {</div>
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<div class="line"><span class="lineno"> 121</span> std::array<std::string, 7> input = {<span class="stringliteral">"2"</span>, <span class="stringliteral">"3"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"*"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"9"</span>, <span class="stringliteral">"-"</span>};</div>
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<div class="line"><span class="lineno"> 122</span> </div>
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<div class="line"><span class="lineno"> 123</span> <span class="keywordtype">float</span> answer = <a class="code hl_function" href="#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
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<div class="line"><span class="lineno"> 124</span> </div>
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<div class="line"><span class="lineno"> 125</span> assert(answer == -4);</div>
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<div class="line"><span class="lineno"> 126</span>}</div>
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<div class="ttc" id="apostfix__evaluation_8cpp_html_ae38bd3a177a6d61da3859a281233bbe1"><div class="ttname"><a href="#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a></div><div class="ttdeci">float postfix_evaluation(std::array< std::string, N > input)</div><div class="ttdoc">Postfix Evaluation algorithm to compute the value from given input array.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00088">postfix_evaluation.cpp:88</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a5b97d12e8b61484f756a8721992bfae1">◆ </a></span>test_function_2()</h2>
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<p>Test function 2 with input array {'100', '200', '+', '2', '/', '5', '*', '7', '+'}. </p>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00133">133</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 133</span> {</div>
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<div class="line"><span class="lineno"> 134</span> std::array<std::string, 9> input = {<span class="stringliteral">"100"</span>, <span class="stringliteral">"200"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"2"</span>, <span class="stringliteral">"/"</span>,</div>
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<div class="line"><span class="lineno"> 136</span> <span class="keywordtype">float</span> answer = <a class="code hl_function" href="#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
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<div class="line"><span class="lineno"> 137</span> </div>
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<div class="line"><span class="lineno"> 138</span> assert(answer == 757);</div>
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<div class="line"><span class="lineno"> 139</span>}</div>
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<p class="definition">Definition at line <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html#l00141">141</a> of file <a class="el" href="../../d7/d75/postfix__evaluation_8cpp_source.html">postfix_evaluation.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 141</span> {</div>
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<div class="line"><span class="lineno"> 142</span> std::array<std::string, 43> input = {</div>
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<div class="line"><span class="lineno"> 143</span> <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>,</div>
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<div class="line"><span class="lineno"> 144</span> <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>, <span class="stringliteral">"1"</span>,</div>
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<div class="line"><span class="lineno"> 145</span> <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>,</div>
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<div class="line"><span class="lineno"> 146</span> <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>, <span class="stringliteral">"+"</span>};</div>
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<div class="line"><span class="lineno"> 147</span> <span class="keywordtype">float</span> answer = <a class="code hl_function" href="#ae38bd3a177a6d61da3859a281233bbe1">others::postfix_expression::postfix_evaluation</a>(input);</div>
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<div class="line"><span class="lineno"> 148</span> </div>
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<div class="line"><span class="lineno"> 149</span> assert(answer == 22);</div>
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