Linux Audio
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Embedded Linux Audio
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#include "stdio_impl.h" int ungetc(int c, FILE *f) { if (c == EOF) return c; FLOCK(f); if (!f->rpos) __toread(f); if (!f->rpos || f->rpos <= f->buf - UNGET) { FUNLOCK(f); return EOF; } *--f->rpos = c; f->flags &= ~F_EOF; FUNLOCK(f); return c; }