Std::fputs (3) Linux Manual Page

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

std::fputs (3) Linux Manual Page