c - Underscore function -

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i'm here looking @ c source code , i've found this:

fprintf(stderr, _("try `%s --help' more information.\n"), command);

i saw underscore when had @ wxwidget, , read it's used internationalization. found horrible (the least intutive name ever), tought it's weird wxwidget convention.

now find again in alsa source. know comes from?

it comes gnu gettext, package designed ease internationalization process. _() function string wrapper. function replaces given string on runtime translation in system's language, if available (i.e. if shipped .mo file language program).


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