https://issues.dlang.org/show_bug.cgi?id=16707
Issue ID: 16707
Summary: [Templates] run variadic templates example failed
Product: D
Version: D2
Hardware: All
URL: http://dlang.org/
OS: All
Status: NEW
Severity: normal
Priority: P3
Component: dlang.org
Assignee: nob...@puremagic.com
Reporter: panme...@gmail.com
Hi, I am very new to dlang, the following example can't be compiled, my dmd
version is "DMD32 D Compiler v2.072.0".
https://dlang.org/spec/template.html#variadic-templates
template print(args...)
{
void print()
{
writeln("args are ", args); // args is a ValueSeq
}
}
template write(Args...)
{
void write(Args args) // Args is a TypeSeq
// args is a ValueSeq
{
writeln("args are ", args);
}
}
void main()
{
print!(1,'a',6.8).print(); // prints: args are 1a6.8
write!(int, char, double).write(1, 'a', 6.8); // prints: args are 1a6.8
}
app.d(31): Error: template app.print cannot deduce function from argument types
!()(void), candidates are:
app.d(11): app.print(args...)()
app.d(32): Error: function app.write!(int, char, double).write (int _param_0,
char _param_1, double _param_2) isnot callable using argument types ()
--
