Alessandro Bonazzi
e075990ed3
Files correlati : Commento : Aggiunto il preprocessore c++ mcpp per sostituire il compilatore nella compilazione delle maschere.
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/* clock_of.c: to measure the execution time of a program. */
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/* 2002/08 kmatsui */
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#include "stdio.h"
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#include "stdlib.h"
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#include "string.h"
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#include "time.h"
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void usage( void);
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int main( int argc, char ** argv)
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{
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char command[ BUFSIZ];
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char **arg, *buf;
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long start_time, passed_time;
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int ret;
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if (argc < 2)
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usage();
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ret = -1;
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arg = argv;
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buf = command;
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while (*++arg) {
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sprintf( buf, "%s ", *arg);
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buf += strlen( buf);
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}
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fprintf( stderr, "%s\n", command);
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start_time = clock();
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ret = system( command);
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if (ret == 0) {
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passed_time = clock() - start_time;
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fprintf( stderr, "%ld ticks passed (%f seconds).\n"
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, passed_time, (double) passed_time / CLOCKS_PER_SEC);
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} else {
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fprintf( stderr, "Command execution error! (status: %d)\n", ret);
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}
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return 0;
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}
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void usage( void)
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{
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fputs( "usage: clock_of <command> [<args>]\n", stderr);
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exit( 1);
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}
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