std::fputc, std::putc

 

C++

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C-style I/O

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FILE fpos_t	stdinstdoutstderr
Functions
File access fopen freopen fclose fflush fwide setbuf setvbuf Direct input/output fread fwrite Unformatted input/output fgetcgetc fgets fputcputc fputs getchar gets (until C++14) putchar puts ungetc fgetwcgetwc fgetws fputwcputwc fputws getwchar putwchar ungetwc Formatted input scanffscanfsscanf vscanfvfscanfvsscanf (C++11)(C++11)(C++11)     wscanffwscanfswscanf vwscanfvfwscanfvswscanf (C++11)(C++11)(C++11)	Formatted output printffprintfsprintfsnprintf (C++11) vprintfvfprintfvsprintfvsnprintf (C++11)     wprintffwprintfswprintf vwprintfvfwprintfvswprintf File positioning ftell fgetpos fseek fsetpos rewind Error handling clearerr feof ferror perror Operations on files remove rename tmpfile tmpnam

 

Defined in header <cstdio>
int fputc( int ch, std::FILE* stream ); int putc( int ch, std::FILE* stream );

Writes a character ch to the given output stream stream.

Internally, the character is converted to unsigned char just before being written.

In C, putc() may be implemented as a macro, which is disallowed in C++. Therefore, calls to std::fputc() and std::putc() always have the same effect.

Parameters

ch	-	character to be written
stream	-	output stream

Return value

On success, returns the written character.

On failure, returns EOF and sets the error indicator (see std::ferror()) on stream.

Example

Run this code

#include <cstdio>
 
int main()
{
    for (char c = 'a'; c != 'z'; c++)
        std::putc(c, stdout);
 
    / putchar's return value is not equal to the argument
    int r = 0x102A;
    std::printf("\nr = 0x%x\n", r);
 
    r = std::putchar(r);
    std::printf("\nr = 0x%x\n", r);
}

Possible output:

abcdefghijklmnopqrstuvwxy
r = 0x102A
*
r = 0x2A

See also

putchar	writes a character to stdout (function)
C documentation for fputc, putc

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