On 11/20/2012 01:13 PM, Jerry Feldman wrote:
On 11/20/2012 01:02 PM, Matthew Gillen wrote:
On 11/20/2012 12:41 PM, Greg London wrote:
In perl, it might look like this:
sub upper_subroutine{
my ($string)=@_;
lower_subroutine("prefix".$string."postfix".timestamp());
}
Could someone give me an example of how to do this in C++ so that
it looks as close to this perl code as possible?
This will be useful to you for getting the timestamp aspect:
http://www.tutorialspoint.com/cplusplus/cpp_date_time.htm
Other than that, use the '+' operator to concatenate C++ string
objects, much like you use the '.' operator in perl.
Note that you can run into issues if neither of the operands to '+'
are actual std::string objects (e.g. "foo" + "bar" doesn't work in C++
like it would in perl, since the literal string is not automatically
promoted to std::string in some cases).
If this could happen without anyone having to die, that would
be even better.
That's asking a lot ;-)
std::string("foo") + std::string("bar") yields the std::string "foobar :-)
Right, because at least one of the operands is a std::string. He'd
actually be fine even using string literals in the places he indicated
in his pseudo-code ^H^H^H perl code:
String upper_subroutine(const std::string& s) {
return lower_subroutine("prefix" + s + "postfix" + timestamp());
}
That would work because 's' is a std::string for the first '+', etc.
Matt
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