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Command line options do not normally use n-dashes; they use hyphens. Another problem with this option is that n-dashes and m-dashes cannot usually be displayed properly in the fixed-width fonts commonly used for command line terminals. The usual custom is to use two hyphens to represent a dash (which for proportional font display will often be converted to either an n-dash or m-dash).
 
Command line options do not normally use n-dashes; they use hyphens. Another problem with this option is that n-dashes and m-dashes cannot usually be displayed properly in the fixed-width fonts commonly used for command line terminals. The usual custom is to use two hyphens to represent a dash (which for proportional font display will often be converted to either an n-dash or m-dash).
 
: In groff (GNU troff, the language in which man pages are written) the code for an m-dash is '''\(em'''. It will display as either two hyphens "'''--'''" or as an actual m-dash "'''β€”'''" depending on the character set specified in the locale environment variables. [[User:Locoluis|Locoluis]] ([[User talk:Locoluis|talk]]) 17:17, 10 June 2016 (UTC)
 
: In groff (GNU troff, the language in which man pages are written) the code for an m-dash is '''\(em'''. It will display as either two hyphens "'''--'''" or as an actual m-dash "'''β€”'''" depending on the character set specified in the locale environment variables. [[User:Locoluis|Locoluis]] ([[User talk:Locoluis|talk]]) 17:17, 10 June 2016 (UTC)
βˆ’
: Many commands use a double dash "--" to specify the end of the options.  In "ls -a" the "-a" is an option.  In "ls -- -a" the "-a" is the name of the file.--[[Special:Contributions/108.162.218.59|108.162.218.59]] 16:00, 11 June 2016 (UTC)
 
  
 
While "check whether input halts" clearly alludes to the halting problem, it may not actually be impossible, depending on what blerp actually does and what sort of input it accepts. (It says nothing about actually ''reporting'' the result, and it makes no guarantees that it will itself halt.)
 
While "check whether input halts" clearly alludes to the halting problem, it may not actually be impossible, depending on what blerp actually does and what sort of input it accepts. (It says nothing about actually ''reporting'' the result, and it makes no guarantees that it will itself halt.)

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