std::fputs (3) - Linux Manuals

std::fputs: std::fputs


std::fputs - std::fputs


Defined in header <cstdio>
int fputs( const char* str, std::FILE* stream );

Writes every character from the null-terminated string str to the output stream stream, as if by repeatedly executing std::fputc.
The terminating null character from str is not written.


str - null-terminated character string to be written
stream - output stream

Return value

On success, returns a non-negative value
On failure, returns EOF and sets the error indicator (see std::ferror) on stream.


The related function std::puts appends a newline character to the output, while std::fputs writes the string unmodified.
Different implementations return different non-negative numbers: some return the last character written, some return the number of characters written (or INT_MAX if the string was longer than that), some simply return a non-negative constant such as zero.


// Run this code

  #include <cstdio>

  int main(void)
      int rc = std::fputs("Hello World", stdout);

      if (rc == EOF)
         std::perror("fputs()"); // POSIX requires that errno is set


  Hello World

See also

snprintf prints formatted output to stdout, a file stream or a buffer

         writes a character string to stdout
puts (function)
         writes a wide string to a file stream
fputws (function)
         gets a character string from a file stream
fgets (function)