Actually no explicit flags, this Go wiki page lists optimizations done by the Go compiler and there was a discussion around this topic in golang-nuts groups. You can turn off optimization and inlining in Go gc compilers for debugging. -gcflags ‘-N -l’ -N : Disable optimizations -l : Disable inlining
You have to reset all arguments. To change, e.g., argument $3: set — “${@:1:2}” “new_arg3” “${@:4}” Basically you set all arguments to their current values, except for the one(s) that you want to change. set — is also specified by POSIX 7. The “${@:1:2}” notation is expanded to the two (hence the 2 in the … Read more
From the C11 standard draft N1570, §5.1.2.2.1/2: The parameters argc and argv and the strings pointed to by the argv array shall be modifiable by the program, and retain their last-stored values between program startup and program termination. They are modifiable. That means they are not string literals. But be careful: the upper citation only … Read more
As others answered, optparse is the best option, but if you just want quick code try something like this: import sys, re first_re = re.compile(r’^\d{3}$’) if len(sys.argv) > 1: if first_re.match(sys.argv[1]): print “Primary argument is : “, sys.argv[1] else: raise ValueError(“First argument should be …”) args = sys.argv[2:] else: args = () # … anywhere … Read more
If the path to your headers is fixed in relation to your sources, then you should be able to avoid having to pass this info via the command line. Say your project’s directory structure is: /CMakeLists.txt /my_sources/main.cpp /my_sources/foo.cpp /my_includes/foo.hpp and in your CMakeLists.txt, you currently have something like: add_executable(MyExe my_sources/main.cpp my_sources/foo.cpp) then to add the … Read more
As of version 2.0 of CommandLineParser The feature as implemented in 1.9.x stable always created confusion, was disabled by default and required the developer to activate it via settings instance. From version 2.0.x, where the kernel was completely rewritten, the feature is always active and I’ll show a simple example: class Options { [Option(SetName = … Read more
Yes, it’s just — instead of –args. From the help: lldb -v [[–] <PROGRAM-ARG-1> [<PROGRAM_ARG-2> …]] Thus: $ lldb — exe –lots –of –flags -a -b -c d e
The problem is that documentation isn’t as clear as it apparently needs to be. 🙁 Specifically, as per: http://www.ndesk.org/doc/ndesk-options/NDesk.Options/OptionValueType.html#F:NDesk.Options.OptionValueType.Required The = within an option specification doesn’t apply to the OptionSet as a whole, but just to the value for that specific option. The importance of this is really only relevant in two scenarios, so first … Read more
Here is a pretty easy alternative for splitting a text line from a file into an argument vector so that you can feed it into your options parser: This is the solution: public static void main(String[] args) { String myArgs[] = Commandline.translateCommandline(“-a hello -b world -c \”Hello world\””); for (String arg:myArgs) System.out.println(arg); } The magic … Read more
Use the shift command if you want to work with more than 9 parameters. (actually more than 10 parameters if you count the %0 parameter) You can […] use the shift command to create a batch file that can accept more than 10 batch parameters. If you specify more than 10 parameters on the command … Read more