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#include "stdio_impl.h" static unsigned char buf[BUFSIZ+UNGET]; static FILE f = { .buf = buf+UNGET, .buf_size = sizeof buf-UNGET, .fd = 0, .flags = F_PERM | F_NOWR, .read = __stdio_read, .seek = __stdio_seek, .close = __stdio_close, }; FILE *const stdin = &f;