RS232

rafaluc · Joined: 12 Apr 2006 Posts: 6

Which the difference between putc and putchar.

SherpaDoug · Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA

There is no functional difference, only aesthetic. I think if you look in the header files you will find putc is defined as putchar.
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Ttelmah · Joined: 11 Mar 2010 Posts: 19505

It is 'historical'.
putchar, is originally defined in K&R, as being equivalent to putc(c, stdout).
putc, in the original C implementation was equivalent to fputc, and required a stream name. On the standard C implementation, you always had three streams defined. stdin, stdout, and stderr (error output). If you just wanted to talk to stdout, and didn't want to type the name, you just use putchar.
In CCS, they are identical.

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