Defined in header
int puts( const char *str );
The terminating null character from
str is not written.
|str||-||character string to be written|
 Return value
On success, returns a non-negative value
std::puts function appends the newline character to the output, while std::fputs function does not.
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.
A typical cause of failure for
std::puts is running out of space on the file system, when
stdout is redirected to a file.
 See also
| writes a character string to a file stream |
| prints formatted output to stdout, a file stream or a buffer |
C documentation for puts