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The
function obtains the next input character (if present) from the stream
pointed at by or the next character pushed back on the stream via The
function acts essentially identically to but is a macro that expands
in-line. The function is equivalent to: getc with the argument stdin. The
function obtains the next (if present) from the stream pointed at by
If successful, these routines return the next requested object
from the If the stream is at end-of-file or a read error occurs, the routines
return The routines and must be used to distinguish between end-of-file
and error. If an error occurs, the global variable is set to indicate the
error. The end-of-file condition is remembered, even on a terminal, and all
subsequent attempts to read will return until the condition is cleared
with
The and functions conform to
Since
is a valid integer value, and must be used to check for failure after
calling The size and byte order of an varies from one machine to another,
and is not recommended for portable applications.
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