uint readf(alias format, Data...)(auto ref Data data) if (isSomeString!(typeof(format)))Reads formatted _data from the file using formattedRead.
format | The format string. When passed as a compile-time argument, the string will be statically checked against the argument types passed. |
data | Items to be read. |
formattedRead: The number of variables filled. If the input range r ends early,
this number will be less than the number of variables provided. Example: ---- // test.d void main() { import std.stdio; auto f = File("input"); foreach (_; 0 .. 3) { int a; f.readf!" %d"(a); writeln(++a); } } ----
% echo "1 2 3" > input
% rdmd test.d 2 3 4
uint readf(Data...)(scope const(char)[] format, auto ref Data data)ditto