the items to write to stdout
In case of an I/O error, throws an StdioException.
Reads stdin and writes it to stdout with an argument counter.
import std.stdio; void main() { string line; for (size_t count = 0; (line = readln) !is null; count++) { write("Input ", count, ": ", line, "\n"); } }
Writes its arguments in text format to standard output (without a trailing newline).