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for_each_file_ex(3) Allegro manual for_each_file_ex(3) NAME for_each_file_ex - Executes callback() for each file matching a wild- card. Allegro game programming library. SYNOPSIS #include <allegro.h> int for_each_file_ex(const char *name, int in_attrib, int out_attrib, int (*callback)(const char *filename, int attrib, void *param), void *param); DESCRIPTION Finds all the files on disk which match the given wildcard specifica- tion and file attributes, and executes callback() once for each. Basi- cally, this is a convenient wrapper around al_findfirst(), al_find- next() and al_findclose(). `in_attrib' is a bitmask specifying the at- tributes the files must carry, `out_attrib' is a bitmask specifying the attributes the files must not carry; attributes which are not specified in either bitmasks are not taken into account for deciding whether callback() is invoked or not. The callback function will be passed three arguments: the first is a string which contains the completed filename (exactly the same string you passed to for_each_file_ex() but with meta characters), the second is the actual attributes of the file, and the third is a void pointer which is simply a copy of `param' (you can use this for whatever you like). The callback must return zero to let the enumeration proceed, or any non-zero value to stop it. If an error occurs, the error code will be stored in `errno' but the enumeration won't stop. Example: int show_name(const char *filename, int attrib, void *param) { allegro_message("Caught `%s', attribs %d\n", filename, attrib); return 0; } ... count = for_each_file_ex("data/level*", FA_DIREC, 0, show_name, 0); allegro_message("%d game directories\n", count); RETURN VALUE Returns the number of successful calls made to callback(), that is, the number of times callback() was called and returned 0. SEE ALSO al_findfirst(3), al_findnext(3), al_findclose(3) Allegro version 4.4.3 for_each_file_ex(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO
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