Boost program options example include

Subject Article Boost Boost. Bind Boost. Function boost. Random Boost. Ardanteia Become. Oberon Subcommand Program Options Oberon extends Boost Program Options with support for subcommands, improved error handling and advanced help text formatting.

How to use Boost. Obtaining, compiling and linking to boost is not covered. Application Template So you have an program that you want to be able to accept command line parameters?

Note: the rest of the examples reference the names of objects in the code below. The call to po::notify vm will throw if the option is not specified. Add the following code block directly below the last option in the desc. Next you need to make sure that the positional options are parsed along with the others and stored in the variable map. Change the po::store call to the following:. You may be interested in these related posts: How to use Boost.

Function How to use Boost. It was extremely useful. Ilia Choly October 12th, Very helpful! Thanks for posting this. Chris April 27th, Thanks, great post. B1 May 10th, This is a very nice tutorial, thanks!

Mikhail July 13th, Great write up! Hiranya August 23rd, Jon October 24th, Hi Jon, You are correct that boost. Thanks for your interest and for highlighting an erroneous corner in the tutorial. Pablo March 27th, Hello, I thank you for your tutorial which already helped me quite a lot.

Sum April 15th, Hi Sum, You are probably not confused, I originally called OptionPrinter PrettyOptionPrinter and I must have forgotten to properly change the include lines before submitting the code. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How do you add Boost libraries in CMakeLists. Ask Question. Asked 10 years, 6 months ago. Active 26 days ago. Viewed k times.

I need to add Boost libraries into my CMakeLists. How do you do it or how do you add it? Peter Mortensen See official documentation here — user Add a comment. Active Oldest Votes. LainIwakura LainIwakura 2, 2 2 gold badges 17 17 silver badges 22 22 bronze badges. Show 1 more comment. When you have multiple build-versions of boost multi-threaded, static, shared, etc.

Kleist 7, 1 1 gold badge 24 24 silver badges 30 30 bronze badges. Thank you for the general tips. They helped me a lot. Incredibly helpful answer! Would've saved me a lot of time had I found this two years ago. Great write-up. How would this look if you wanted to say to link against all of boost?

After storing values, that variable will have the value of the option. Second, we specify a default value of 10, which will be used if no value is specified by the user. Users typically like to use short option names for common options, and the "include-path,I" name specifies that short option name is "I". So, both "--include-path" and "-I" can be used. Note also that the type of the "include-path" option is std::vector.

The library provides special support for vectors -- it will be possible to specify the option several times, and all specified values will be collected in one vector. The "input-file" option specifies the list of files to process. That's okay for a start, but, of course, writing something like:.

The command line tokens which have no option name, as above, are called "positional options" by this library. They can be handled too. With a little help from the user, the library can decide that "a. Here's the additional code we need:. The first two lines say that all positional options should be translated into "input-file" options. The latter is a convenient wrapper for simple cases, but now we need to pass additional information.

By now, all options are described and parsed. We'll save ourselves the trouble of implementing the rest of the compiler logic and only print the options:. Oops, there's a slight problem. It's still possible to specify the "--input-file" option, and usage message says so, which can be confusing for the user. It would be nice to hide this information, but let's wait for the next example.

It's quite likely that specifying all options to our compiler on the command line will annoy users. What if a user installs a new library and wants to always pass an additional command line element?