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I am writing a program that intakes baseball stats into structs and then displays them line by line with one player on each line and the stats being the columns.
Not sure how to do this well enough to make them even and such though and make it look nice. Any suggestions?
look into output routines using either C style printf() or C++ style ostream manipulators and flags.
One other quick question. If use this line:
cout << setprecision(3) << setiosflags(ios::fixed);
How can I negate that and make it go back to normal?
Anyone know how to do that? Set it back to default after using setprecision and setiosflags?
I do not know any method to clear all flags, but you can use cout.unsetf( flags_here ) to remove some specific flags. The precision I donīt know, you could reset it to the default, I think that it is 5.
Hope that helps!
Flags:
Code:enum {
skipws, Skip whitespace on input.
left, Left-adjust output.
right, Right-adjust output.
internal, Pad after sign or base indicator.
dec, Decimal conversion.
oct, Octal conversion.
hex, Hexadecimal conversion.
showbase, Show base indicator on output.
showpoint, Show decimal point for floating-point output.
uppercase, Uppercase hex output.
showpos, Show '+' with positive integers.
scientific, Suffix floating-point numbers with exponential (E) notation on output.
fixed, Use fixed decimal point for floating-point numbers.
unitbuf, Flush all streams after insertion.
stdio, Flush stdout, stderr after insertion.
};
The normal way to do this is to get the precision, change it, party, and then set it back. same deal with the flagsYep, that's right this is an ugly and stupid way to do things. Plus if foo() throws an exception you will never get cout to work right again. Although in this case there really is no good way to recover from the exception as we have already printed 'a' and a comma, so we're always going to be ugly. However for those who want a classy and safer way to do things boost comes to the rescue with io state savers While you are there you probably will want to go ahead and have a look at formatCode:std::ios_base::fmtflags f = std::cout.setf(std::ios_base::right);
std::streamsize p = std::cout.precision(3);
std::cout << a << ", " << foo() << std::endl;
std::cout.precision(p);
std::cout.flags(f);
Interesting! But what does the statement
std::ios_base::fmtflags f = std::cout.setf(std::ios_base::right) ?
Thanks in advance.
most of the (member) functions that allow you to set something return what that value was previously. std::ios_base::fmtflags is really a fancy way of saying int, but future-proof(ish).
Sorry for insisting, but what is td::ios_base::right?
Thanks for the answer.
What a shame!!!! Sorry for the last post! My first one has the answer and I didnīt see it.