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📁 Programming and Problem Solving with C++
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">	<html>		<head>			<title>page_778</title>			<link rel="stylesheet" href="reset.css" type="text/css" media="all">			<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />		</head>		<body>		<table summary="top nav" border="0" width="100%">			<tr>				<td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_777.html">&lt;&nbsp;previous page</a></td>				<td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_778</strong></td>				<td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_779.html">next page&nbsp;&gt;</a></td>			</tr>					<tr>				<td align="left" colspan="3" style="background: #ffffff; padding: 20px;">    <table border="0" width="100%" cellpadding="0"><tr><td align="center">  <table border="0" cellpadding="2" cellspacing="0" width="100%"><tr><td align="left"></td>  <td align="right"></td>  </tr></table></td></tr><tr><td align="left"><p></p><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><td align="right"><font face="Times New Roman, Times, Serif" size="2" color="#FF0000">Page 778</font></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td>  <td colspan="3" height="12"></td>  <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td>  <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">Boolean聽Consistent(聽/*聽in聽*/聽StudentRec聽aStudent聽)<br /><br />//聽Precondition:<br />//聽聽聽聽聽0.0聽&lt;=聽aStudent.gpa聽&lt;=聽4.0<br />//聽Postcondition:<br />//聽聽聽聽聽Function聽value聽==聽TRUE,聽if聽the聽course聽grade聽is聽consistent<br />//聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽with聽the聽overall聽GPA<br />//聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽==聽FALSE,聽otherwise<br /><br />{<br />聽聽聽聽int聽roundedGPA聽=聽int(aStudent.gpa聽+聽0.5);<br /><br />聽聽聽聽switch聽(roundedGPA)<br />聽聽聽聽{<br />聽聽聽聽聽聽聽聽case聽0:聽return聽(aStudent.courseGrade聽==聽F);<br />聽聽聽聽聽聽聽聽case聽1:聽return聽(aStudent.courseGrade聽==聽D);<br />聽聽聽聽聽聽聽聽case聽2:聽return聽(aStudent.courseGrade聽==聽C);<br />聽聽聽聽聽聽聽聽case聽3:聽return聽(aStudent.courseGrade聽==聽B);<br />聽聽聽聽聽聽聽聽case聽4:聽return聽(aStudent.courseGrade聽==聽A);<br />聽聽聽聽}<br />}</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td>  <td colspan="3" height="12"></td>  <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td>  <td><font face="Times New Roman, Times, Serif" size="3">Let's review the basic features of </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">struct</font><font face="Times New Roman, Times, Serif" size="3"> data types in the context of another example. A parts wholesaler wants to computerize her operation. Until now, she has kept the inventory on handwritten 8 脳 10 cards. A typical inventory card contains the following data:<br /></font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td>  <td colspan="3" height="12"></td>  <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td>  <td><font face="Times New Roman, Times, Serif" size="3">Part number: 1A3321<br />Description: Cotter pin<br />Cost: 0.012<br />Quantity on hand: 2100</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td>  <td colspan="3" height="12"></td>  <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td>  <td><font face="Times New Roman, Times, Serif" size="3">A </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">struct</font><font face="Times New Roman, Times, Serif" size="3"> is a natural choice for describing a part. Each item on the inventory card can be a member of the </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">struct</font><font face="Times New Roman, Times, Serif" size="3">. The relevant declarations look like this:</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td>  <td colspan="3" height="12"></td>  <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td>  <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">typedef聽char聽String6[7];<br />typedef聽char聽String20[21];<br /><br />struct聽PartType<br />{<br />聽聽聽聽String6聽聽partNumber;<br />聽聽聽聽String20聽description;<br />聽聽聽聽float聽聽聽聽cost;<br />聽聽聽聽int聽聽聽聽聽聽quantity;<br />};<br /><br />PartType聽part;</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table></td></tr></table><p><font size="0"></font></p>聽  </td>			</tr>				<tr>				<td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_777.html">&lt;&nbsp;previous page</a></td>				<td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_778</strong></td>				<td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_779.html">next page&nbsp;&gt;</a></td>			</tr>		</table>		</body>	</html>
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