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PUTC(3) BSD Library Functions Manual PUTC(3) NAME fputc, putc, putchar, putw -- output a character or word to a stream LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <stdio.h> int fputc(int c, FILE *stream); int putc(int c, FILE *stream); int putchar(int c); int putw(int w, FILE *stream); DESCRIPTION The fputc() function writes the character c (converted to an ``unsigned char'') to the output stream pointed to by stream. The putc() macro acts essentially identically to fputc(), but is a macro that expands in-line. It may evaluate stream more than once, so argu- ments given to putc() should not be expressions with potential side ef- fects. The putchar() macro is identical to putc() with an output stream of stdout. The putw() function writes the specified int to the named output stream. RETURN VALUES The functions, fputc(), putc() and putchar() return the character writ- ten. If an error occurs, the value EOF is returned. The putw() function returns 0 on success; EOF is returned if a write error occurs, or if an attempt is made to write a read-only stream. SEE ALSO ferror(3), fopen(3), getc(3), putwc(3), stdio(3) STANDARDS The functions fputc(), putc(), and putchar(), conform to ISO/IEC 9899:1990 ("ISO C90"). A function putw() function appeared in Version 6 AT&T UNIX. BUGS The size and byte order of an int varies from one machine to another, and putw() is not recommended for portable applications. BSD June 4, 1993 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS | BUGS
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