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466
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1 <refentry id="putc">
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2 <refnamediv>
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573
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3 <refname>Putc</refname>
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4 <refname>Putchar</refname>
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5 <refname>Putw</refname>
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6 <refpurpose>put character or word in a file</refpurpose>
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466
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7 </refnamediv>
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8
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9 <refsynopsisdiv>
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10 <funcsynopsis>
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468
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11 <funcsynopsisinfo>
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12 #include <stdio.h>
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13 </funcsynopsisinfo>
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466
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14 <funcprototype>
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15 <funcdef><function>putc</function></funcdef>
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573
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16 <paramdef>char <parameter>ch</parameter></paramdef>
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17 <paramdef>FILE *<parameter>fp</parameter></paramdef>
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18 </funcprototype>
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19
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20 <funcprototype>
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21 <funcdef><function>putchar</function></funcdef>
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22 <paramdef>char <parameter>ch</parameter></paramdef>
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23 </funcprototype>
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24
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25 <funcprototype>
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26 <funcdef><function>putw</function></funcdef>
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27 <paramdef>int <parameter>n</parameter></paramdef>
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28 <paramdef>FILE *<parameter>fp</parameter></paramdef>
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466
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29 </funcprototype>
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30 </funcsynopsis>
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31
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32 </refsynopsisdiv>
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33
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34 <refsect1><title>Description</title>
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35 <para>
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36 Putc add the character "ch" to the file "fp" at the current
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37 writing position and advances the position pointer.
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38 </para>
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39 <para>
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40 Putchar is implemented as a macro (defined in the header file)
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41 and is equivalent to "putc(ch,stdout)".
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42 </para>
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43 <para>
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44 Putw adds the (two byte) machine word "n" to the file "fp" in
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45 the manner of putc.
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46 </para>
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47 <para>
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48 Output via putc is normally buffered except;
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49 (a) when the buffering is disabled by "setbuf()", and
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50 (b) the standard error output is always unbuffered.
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466
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51 </para>
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52 </refsect1>
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542
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53
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552
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54 <refsect1><title>Diagnostics</title>
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55 <para>
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56 Putc and putchar return the character argument from a
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57 successful call, and EOF on end-of-file or error.
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58 </para>
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59 </refsect1>
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60
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542
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61 <refsect1><title>See Also</title>
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62 <para>
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63 <link linkend="fopen">fopen()</link>,
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573
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64 <link linkend="fclose">fclose(), fflush()</link>,
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542
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65 <link linkend="getc">getc()</link>,
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66 <link linkend="puts">puts()</link>,
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67 <link linkend="printf">printf()</link>,
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68 <link linkend="fread">fread()</link>
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69 </para>
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70 </refsect1>
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71
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466
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72 </refentry>
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