std::fputs (3) - Linux Manuals

std::fputs: std::fputs

NAME

std::fputs - std::fputs

Synopsis

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.

Parameters

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.

Notes

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.

Example

// 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
  }

Output:

  Hello World