.TH PUTC 3S "19 January 1983"
putc, putchar, fputc, putw \- put character or word on a stream
It returns the character written.
but is a genuine function rather than a macro.
It returns the word written.
neither assumes nor causes special alignment in the file.
These functions return the constant
upon error. Since this is a good integer,
Because it is implemented as a macro,
argument with side effects improperly. In particular
Errors can occur long after the call to