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The C library functions fread(), fgets() and gets()
The functions fread()
, fgets()
, and gets()
are implemented as fast block input/output functions where possible.
These fast implementations are part of
the ARM stream implementation and they bypass fgetc()
.
Where the fast implementation is not possible, they are implemented
as a loop over fgetc()
and ferror()
.
Each uses the FILE
argument opaquely.
If you provide your own implementation of __FILE
, __stdin
(for gets()
), fgetc()
,
and ferror()
, you can use these functions,
and the C++ object std::cin
directly from the
library.