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       clock.3 - scc - simple c99 compiler
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       clock.3 (582B)
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            1 .TH CLOCK 3
            2 .SH NAME
            3 clock - determine processor time
            4 .SH SYNOPSIS
            5 #include <time.h>
            6 
            7 clock_t clock(void)
            8 .SH DESCRIPTION
            9 The
           10 .BR clock ()
           11 function returns an approximation of processor time used by the program.
           12 .SH RETURN VALUE
           13 The value returned is the CPU time used so far as a clock_t.
           14 In order to get the number of seconds used, divide by
           15 .BR CLOCKS_PER_SEC .
           16 If the processor time used is not available or its value cannot
           17 be represented, the function returns the value (clock_t)-1.
           18 .SH STANDARDS
           19 ISO/IEC 9899:1999 Section 7.23.2.1 Paragraph 1,2,3
           20 .SH SEE ALSO
           21 .BR time.h (3)