вывод символов и строк (output of characters and strings)
Имя (Name)
fputc, fputs, putc, putchar, puts - output of characters and
strings
Синопсис (Synopsis)
#include <stdio.h>
int fputc(int c, FILE *stream);
int putc(int c, FILE *stream);
int putchar(int c);
int fputs(const char *restrict s, FILE *restrict stream);
int puts(const char *s);
Описание (Description)
fputc() writes the character c, cast to an unsigned char, to
stream.
putc() is equivalent to fputc() except that it may be implemented
as a macro which evaluates stream more than once.
putchar(c) is equivalent to putc(c, stdout).
fputs() writes the string s to stream, without its terminating
null byte ('\0').
puts() writes the string s and a trailing newline to stdout.
Calls to the functions described here can be mixed with each
other and with calls to other output functions from the stdio
library for the same output stream.
For nonlocking counterparts, see unlocked_stdio(3).
Возвращаемое значение (Return value)
fputc(), putc(), and putchar() return the character written as an
unsigned char cast to an int or EOF on error.
puts() and fputs() return a nonnegative number on success, or EOF
on error.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│fputc(), fputs(), putc(), putchar(), │ Thread safety │ MT-Safe │
│puts() │ │ │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, C89, C99.
Ошибки (баги) (Bugs)
It is not advisable to mix calls to output functions from the
stdio library with low-level calls to write(2) for the file
descriptor associated with the same output stream; the results
will be undefined and very probably not what you want.
Смотри также (See also)
write(2), ferror(3), fgets(3), fopen(3), fputwc(3), fputws(3),
fseek(3), fwrite(3), putwchar(3), scanf(3), unlocked_stdio(3)
