I can't understand why the
tm struct in C++ behaves this way. Let me be more specific - if I were to get the current time, I'd probably do something like this
time_t now = time(0); tm *nowTm = gmtime(&now);
And upon printing out the date, I expect something like
2015/06/13 (the current date as of this post)
cout << nowTm->tm_year << "/" << nowTm->tm_mon << "/" << nowTm->tm_mday;
But instead, I find out that it prints out
1150/5/13 instead. For the month value, I simply added 1 to set it to the correct month, but playing around with the year proved troublesome.
I came across this SO post: Algorithm to add or subtract days from a date?, which said to subtract 1900 from the year to get the correct year. I tried that to no avail.
I then tried adding on the difference between the current year and 1150,
2015 - 1150 = 865 to get the correct year, but it gave me
9800 instead of
I then experimented with adding for the year, and found that
- If I +1 to the year, it goes up in increments of 10 years.
- If I +0.1 to the year, it would divide the date by zero and add 0.1 to it (e.g. 1150 + 1 = 115.01).
I'm confused - why does this happen and how do I get the correct year in my