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#include <time.h> // time
struct timespec start, stop;
int gettimeStatus = clock_gettime( CLOCK_REALTIME, &start );
printf ( "gettimeStatus: %d \n", gettimeStatus );
printf ( "start.tv_sec = %d start.tv_nsec = %d \n", start.tv_sec, start.tv_nsec );
gettimeStatus = clock_gettime( CLOCK_REALTIME, &stop );
printf ( " stop.tv_sec = %d stop.tv_nsec = %d \n", stop.tv_sec, stop.tv_nsec );
printf ( " dt_sec = %d dt_nsec = %d \n", stop.tv_sec - start.tv_sec,
stop.tv_nsec- start.tv_nsec);
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Direct access to command line parameters in C++
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#include <iostream>
using namespace std;
int main(int argc, char* argv[]) {
cout << "argc = " << argc << endl;
for(int i = 0; i < argc; i++)
cout << "argv[" << i << "] = " << argv[i] << endl;
return 0;
}
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Input parameters parsing with getopt
getopt has potential problem: it does not detect the missing argument and pick-up the next available option as an argument...
RETURN VALUE:
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