ch08_177.htm

by Randal L. Schwartz and Tom Phoenix ISBN 0-596-00132-0 Third Edition, published July 2001. (See

</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">frexp</tt></p>
</td>
<td>
<p>Returns mantissa and exponent of a floating-point number</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">fscanf</tt></p>
</td>
<td>
<p>C-specific; use <tt class="literal">&lt;&gt;</tt> and regular expressions</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">fseek</tt></p>
</td>
<td>
<p>Uses method <tt class="literal">FileHandle::seek</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">fsetpos</tt></p>
</td>
<td>
<p>Uses method <tt class="literal">FileHandle::setpos</tt></p>
</td>
</tr>
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<td>
<p><tt class="literal">fstat</tt></p>
</td>
<td>
<p>Gets file status</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">ftell</tt></p>
</td>
<td>
<p>Uses method <tt class="literal">FileHandle::tell</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">fwrite</tt></p>
</td>
<td>
<p>C-specific; use Perl's <tt class="literal">print</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getc</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">etc</tt> function</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getchar</tt></p>
</td>
<td>
<p>Returns one character from STDIN</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getcwd</tt></p>
</td>
<td>
<p>Returns name of current working directory</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getegid</tt></p>
</td>
<td>
<p>Returns effective group ID (gid)</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getenv</tt></p>
</td>
<td>
<p>Returns value of the specified environment variable</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">geteuid</tt></p>
</td>
<td>
<p>Returns the effective user ID (uid)</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getgid</tt></p>
</td>
<td>
<p>Returns the user's real group ID (gid)</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getgrgid</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getgrgid</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getgrnam</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getgrnam</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getgroups</tt></p>
</td>
<td>
<p>Returns IDs of the user's supplementary groups</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getlogin</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getlogin</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getpgrp</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getpgrp</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getpid</tt></p>
</td>
<td>
<p>Returns ID of the process (pid)</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getppid</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getppid</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getpwnam</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getpwnam</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getpwuid</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">getpwuid</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">gets</tt></p>
</td>
<td>
<p>Returns one line from STDIN</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">getuid</tt></p>
</td>
<td>
<p>Returns user's ID (uid)</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">gmtime</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">gmtime</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isalnum</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isalpha</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isatty</tt></p>
</td>
<td>
<p>Returns Boolean indicating whether the specified filehandle is
connected to a TTY
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">iscntrl</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isdigit</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isgraph</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">islower</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isprint</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">ispunct</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isspace</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isupper</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">isxdigit</tt></p>
</td>
<td>
<p>Identical to C function, but can apply to one character or a whole
string
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">kill</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">kill</tt> function</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">labs</tt></p>
</td>
<td>
<p>C-specific; use Perl's <tt class="literal">abs</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">ldexp</tt></p>
</td>
<td>
<p>Identical to C function <tt class="literal">ldexp(3)</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">ldiv</tt></p>
</td>
<td>
<p>C-specific; use division operator (<tt class="literal">/</tt>) and
Perl's <tt class="literal">int</tt> function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">link</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">link</tt> function</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">localeconv</tt></p>
</td>
<td>
<p>Gets numeric formatting information; returns reference to a hash
containing the current locale formatting values
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">localtime</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">localtime</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">log</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">log</tt> function</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">log10</tt></p>
</td>
<td>
<p>Identical to C function <tt class="literal">log10(3)</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">longjmp</tt></p>
</td>
<td>
<p>C-specific; use Perl's <tt class="literal">die</tt>
function
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">lseek</tt></p>
</td>
<td>
<p>Moves the read/write file pointer; returns <tt class="literal">undef</tt>
on failure
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">malloc</tt></p>
</td>
<td>
<p>C-specific</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mblen</tt></p>
</td>
<td>
<p>Identical to C function <tt class="literal">mblen(3)</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mbstowcs</tt></p>
</td>
<td>
<p>Identical to C function <tt class="literal">mbstowcs(3)</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mbtowc</tt></p>
</td>
<td>
<p>Identical to C function <tt class="literal">mbtowc(3)</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">memchr</tt></p>
</td>
<td>
<p>C-specific; use Perl's <tt class="literal">index</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">memcmp</tt></p>
</td>
<td>
<p>C-specific; use <tt class="literal">eq</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">memcpy</tt></p>
</td>
<td>
<p>C-specific; use <tt class="literal">=</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">memmove</tt></p>
</td>
<td>
<p>C-specific; use <tt class="literal">=</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">memset</tt></p>
</td>
<td>
<p>C-specific; use <tt class="literal">x</tt></p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mkdir</tt></p>
</td>
<td>
<p>Identical to Perl's <tt class="literal">mkdir</tt> function</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mkfifo</tt></p>
</td>
<td>
<p>Similar to C function <tt class="literal">mkfifo(2)</tt>; returns
<tt class="literal">undef</tt> on failure
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">mktime</tt></p>
</td>
<td>
<p>Converts date/time information to a calendar time; returns
<tt class="literal">undef</tt> on failure
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">modf</tt></p>
</td>
<td>
<p>Returns integral and fractional parts of a floating-point number</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">nice</tt></p>
</td>
<td>
<p>Similar to C function <tt class="literal">nice(3)</tt>; returns
<tt class="literal">undef</tt> on failure
</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">offsetof</tt></p>
</td>
<td>
<p>C-specific</p>
</td>
</tr>
<tr>
<td>
<p><tt class="literal">open</tt></p>
</td>
<td>
<p>Opens file for reading or writing; returns <tt class="literal">undef</tt>
on failure
</p>
</td>
</tr>