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Check that file exists: Difference between revisions
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print -e $FileSeperator.'docs'.$FileSeperator;
==[[Pop11]]==
[[Category:Pop11]]
;;; Define an auxilary function, returns boolean
define file_exists(fname);
lvars f = sysopen(fname, 0, true, `A`);
if f then
sysclose(f);
return (true);
else
return (false);
endif;
enddefine;
;;; Use it (prints true or false)
file_exists('input.txt') =>
file_exists('/input.txt') =>
file_exists('docs') =>
file_exists('/docs') =>
==[[DOS]]==
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