Hi, I am learning how to use readf to read integers. I follow the
example in https://dlang.org/library/std/stdio/readf.html
The sample code use readf in following way
readf!" %d"(a);
It works when I use dmd 2.074. However, I got compile error when
I switch to ldc2
/usr/include/d/std/stdio.d(3339): Error: tuple A is used as a type
b.d(8): Error: template instance std.stdio.readf!" %d" error
instantiating
It turns out that I can compile the code using ldc2 if I change
the line to
readf(" %d", &a);
So my questions are
1. Should I use ampersand? I search the web and other people use
ampersand. But from the doc I guess that I can also pass
arguments as ref and do need to use ampersand?
2. I also tried changing the code to readf!" %d"(&a); and ldc2
gives me the same error. I search and the ! does something called
template instantiation. Why it does not work here?
Thanks for your help!
