+= plus equal sign

Growl

What does += mean?

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int julian_day( int month, int day, int year )

{

  int jday = 0;

  for (int m=1; m<month; ++m )

    { 

      jday += DaysInMonth[m];

      if ( m == 2 && is_leap_year(year))

          ++jday;  // February 29th

    }

  jday += day;

  return jday;

}

Thanks a lot

JosAH

+= is the 'add assignment operator; e.g.

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int foo= 1;
 
foo+= 41; // foo has value 42 now

You can do the same with most of the other binary operators; && and || can't
be used like that.

kind regards,

Jos

puppysri

eg a+=1 means a=a+1 such an operation can be used for all arithmetic operations

+= plus equal sign

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