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CLOCK(3)                 BSD Library Functions Manual                 CLOCK(3)

NAME
     clock -- determine processor time used

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <&lt;time.h>&gt;

     clock_t
     clock(void);

DESCRIPTION
     The clock() function determines the amount of processor time used since
     the invocation of the calling process, measured in CLOCKS_PER_SECs.

RETURN VALUES
     The clock() function returns the amount of time used unless an error
     occurs, in which case the return value is -1.

SEE ALSO
     getrusage(2)

STANDARDS
     The clock() function conforms to ANSI X3.159-1989 (``ANSI C89'').

BSD                              June 4, 1993                              BSD