The Complete Guide to Building Strings in C++

https://www.fluentcpp.com/2017/12/19/build-strings-from-plain-string-up-to-boost-karma/

by joboccara • 9 years ago

23 7 9 years ago

signa11• 9 years ago

cheap jabs at the venerable printf(...) notwithstanding, this article is ok. however, i must confess, string formatting still sucks in plain C++, and snprintf(...) is not too shabby.

reality_czech• 9 years ago

The cheap jabs are all incorrect, as well. Any compiler from the last 10 years will warn you if you don't match your printf format string to the arguments. printf also supports reordering arguments using the %m$ syntax (read the man page). And yes, you can extend printf with your own types.

A better guide to using strings in C++ is here: https://yosefk.com/c++fqa/io.html

nikbackm• 9 years ago

Does the compiler also warn when you don't use a literal format string?

aldanor• 9 years ago

I’m surprised at how the author fails to mention fmtlib [1] with near-printf-like performance and sane (Python .format-like) formatting syntax, which also happens to generate much smaller binaries than Boost.Format.

[1] https://github.com/fmtlib/fmt

gumby2• 9 years ago

Author doesn't have a comment section unfortunately, perhaps he reads this. Instead of the stream iterator, use a stream joiner and not deal with the crummy trailing delimiter.

Also to_chars offers better formatting than to_string.

gumby2• 9 years ago

to late to edit: there IS a comment section but my ad blocking had blocked it -- and someone else pointed out the stream joiners.

Koshkin• 9 years ago

Informative article. In practice, using ostringstream is the most useful technique.

The Complete Guide to Building Strings in C++

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