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// fiopen -- [w]filebuf::_Fiopen(const char *, ios::openmode)
#include <locale>
#include <fstream>
_STD_BEGIN
_CRTIMP2 FILE *__cdecl __Fiopen(const char *name, ios_base::openmode mode) { // open a file
static const char *mods[] = { "r", "w", "w", "a", "rb", "wb", "wb", "ab", "r+", "w+", "a+", "r+b", "w+b", "a+b", 0}; static const int valid[] = { ios_base::in, ios_base::out, ios_base::out | ios_base::trunc, ios_base::out | ios_base::app, ios_base::in | ios_base::binary, ios_base::out | ios_base::binary, ios_base::out | ios_base::trunc | ios_base::binary, ios_base::out | ios_base::app | ios_base::binary, ios_base::in | ios_base::out, ios_base::in | ios_base::out | ios_base::trunc, ios_base::in | ios_base::out | ios_base::app, ios_base::in | ios_base::out | ios_base::binary, ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary, ios_base::in | ios_base::out | ios_base::app | ios_base::binary, 0}; FILE *fp; int n; ios_base::openmode atefl = mode & ios_base::ate; mode &= ~ios_base::ate; for (n = 0; valid[n] != 0 && valid[n] != mode; ++n) ; if (valid[n] == 0 || (fp = fopen(name, mods[n])) == 0) return (0); if (!atefl || fseek(fp, 0, SEEK_END) == 0) return (fp); fclose(fp); // can't position at end
return (0); }
_STD_END
/*
* Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
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