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Programming and Problem Solving with C++

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  <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">isspace(ch)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"><i>Parameter:<br />
Function return value:</i></font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3">A </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">char</font><font face="Times New Roman, Times, Serif" size="3"> value </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch<br /></font><font face="Times New Roman, Times, Serif" size="3">An </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">int</font><font face="Times New Roman, Times, Serif" size="3"> value that is</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> nonzero (TRUE), if </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch</font><font face="Times New Roman, Times, Serif" size="3"> is a whitespace character (blank, newline, tab, carriage return, form feed)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> 0 (FALSE), otherwise</font></td>
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  <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">isupper(ch)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"><i>Parameter:<br />
Function return value:</i></font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3">A </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">char</font><font face="Times New Roman, Times, Serif" size="3"> value </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch<br /></font><font face="Times New Roman, Times, Serif" size="3">An </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">int</font><font face="Times New Roman, Times, Serif" size="3"> value that is</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> nonzero (TRUE), if </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch</font><font face="Times New Roman, Times, Serif" size="3"> is an uppercase letter (AZ)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> 0 (FALSE), otherwise</font></td>
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  <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">isxdigit(ch)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"><i>Parameter:<br />
Function return value:</i></font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3">A </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">char</font><font face="Times New Roman, Times, Serif" size="3"> value </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch<br /></font><font face="Times New Roman, Times, Serif" size="3">An </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">int</font><font face="Times New Roman, Times, Serif" size="3"> value that is</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> nonzero (TRUE), if </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">ch</font><font face="Times New Roman, Times, Serif" size="3"> is a hexadecimal digit (09, AF, a&amp;ndashf)</font></td>
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  <td><font face="Times New Roman, Times, Serif" size="3"> 0 (FALSE), otherwise</font></td>
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