diff in putchar(c) and printf("%c",c); Post: 302137007

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LEARN ABOUT BSD

putchar

PUTC(3S)																  PUTC(3S)

NAME

       putc, putchar, fputc, putw - put character or word on a stream

SYNOPSIS

       #include <stdio.h>

       int putc(c, stream)
       char c;
       FILE *stream;

       int putchar(c)

       int fputc(c, stream)
       FILE *stream;

       int putw(w, stream)
       FILE *stream;

DESCRIPTION

       Putc appends the character c to the named output stream.  It returns the character written.

       Putchar(c) is defined as putc(c, stdout).

       Fputc behaves like putc, but is a genuine function rather than a macro.

       Putw  appends  word (that is, int) w to the output stream.  It returns the word written.  Putw neither assumes nor causes special alignment
       in the file.

SEE ALSO

       fopen(3S), fclose(3S), getc(3S), puts(3S), printf(3S), fread(3S)

DIAGNOSTICS

       These functions return the constant EOF upon error.  Since this is a good integer, ferror(3S) should be used to detect putw errors.

BUGS

       Because it is implemented as a macro, putc treats a stream argument with side effects improperly.  In particular

       putc(c, *f++);

       doesn't work sensibly.

       Errors can occur long after the call to putc.

7th Edition							 November 6, 1985							  PUTC(3S)