Wondering about errors…

[Adam D. Ruppe]

Yeah, me too.

I take a working program and add "gf" to the middle of it. Here's 
the errors:

base.d(2143): Error: found '{' when expecting ';' following 
statement
base.d(2168): Error: unexpected ( in declarator
base.d(2168): Error: basic type expected, not "div"
base.d(2168): Error: found '"div"' when expecting ')'
base.d(2168): Error: no identifier for declarator 
div.addChild(int)
base.d(2168): Error: semicolon expected following function 
declaration
base.d(2168): Error: Declaration expected, not ','
base.d(2177): Error: Declaration expected, not 'if'
base.d(2179): Error: no identifier for declarator qrUrl
base.d(2180): Error: unrecognized declaration


OK.... now let's add a semicolon to it. Prepare yourself, here's 
what dmd gives me now:

base.d(2141): Error: undefined identifier gf, did you mean 
template to(T)?
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(1723): 
Error: template std.format.formatRange does not match any 
function template declaration. Candidates are:
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(1982):  
       std.format.formatRange(Writer, T, Char)(ref Writer w, ref T 
val, ref FormatSpec!(Char) f) if (isInputRange!(T))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(1723): 
Error: template std.format.formatRange(Writer, T, Char)(ref 
Writer w, ref T val, ref FormatSpec!(Char) f) if 
(isInputRange!(T)) cannot deduce template function from argument 
types !()(Appender!(string),immutable(wchar)[],FormatSpec!(char))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(100): 
Error: template instance 
std.format.formatValue!(Appender!(string), immutable(wchar)[], 
char) error instantiating
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(807):     
    instantiated from here: toStr!(string, immutable(wchar)[])
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(274):     
    instantiated from here: toImpl!(string, immutable(wchar)[])
arsd/characterencodings.d(75):        instantiated from here: 
to!(immutable(wchar)[])
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(807): 
Error: template instance std.conv.toStr!(string, 
immutable(wchar)[]) error instantiating
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(274):     
    instantiated from here: toImpl!(string, immutable(wchar)[])
arsd/characterencodings.d(75):        instantiated from here: 
to!(immutable(wchar)[])
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/conv.d(274): 
Error: template instance std.conv.toImpl!(string, 
immutable(wchar)[]) error instantiating
arsd/characterencodings.d(75):        instantiated from here: 
to!(immutable(wchar)[])
arsd/characterencodings.d(75): Error: template instance 
std.conv.to!(string).to!(immutable(wchar)[]) error instantiating
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(1718): 
Error: template 
std.array.Appender!(immutable(dchar)[]).Appender.put does not 
match any function template declaration. Candidates are:
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2305):   
      std.array.Appender!(immutable(dchar)[]).Appender.put(U)(U 
item) if (isImplicitlyConvertible!(U, T) || isSomeChar!(T) && 
isSomeChar!(U))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2325):   
      
std.array.Appender!(immutable(dchar)[]).Appender.put(Range)(Range 
items) if (isInputRange!(Unqual!(Range)) && !isInputRange!(Range))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2334):   
      
std.array.Appender!(immutable(dchar)[]).Appender.put(Range)(Range 
items) if (isInputRange!(Range) && 
is(typeof(Appender.init.put(items.front))))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2305): 
Error: template 
std.array.Appender!(immutable(dchar)[]).Appender.put cannot 
deduce template function from argument types 
!()(immutable(dchar)[])
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(1719): 
Error: template 
std.array.Appender!(immutable(dchar)[]).Appender.put does not 
match any function template declaration. Candidates are:
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2305):   
      std.array.Appender!(immutable(dchar)[]).Appender.put(U)(U 
item) if (isImplicitlyConvertible!(U, T) || isSomeChar!(T) && 
isSomeChar!(U))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2325):   
      
std.array.Appender!(immutable(dchar)[]).Appender.put(Range)(Range 
items) if (isInputRange!(Unqual!(Range)) && !isInputRange!(Range))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2334):   
      
std.array.Appender!(immutable(dchar)[]).Appender.put(Range)(Range 
items) if (isInputRange!(Range) && 
is(typeof(Appender.init.put(items.front))))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(2305): 
Error: template 
std.array.Appender!(immutable(dchar)[]).Appender.put cannot 
deduce template function from argument types 
!()(immutable(dchar)[])
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(1720): 
Error: template std.array.replaceInto does not match any function 
template declaration. Candidates are:
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(1729):   
      std.array.replaceInto(E, Sink, R1, R2)(Sink sink, E[] 
subject, R1 from, R2 to) if (isOutputRange!(Sink, E) && 
isDynamicArray!(E[]) && isForwardRange!(R1) && 
isForwardRange!(R2) && (hasLength!(R2) || isSomeString!(R2)))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/array.d(1720): 
Error: template std.array.replaceInto(E, Sink, R1, R2)(Sink sink, 
E[] subject, R1 from, R2 to) if (isOutputRange!(Sink, E) && 
isDynamicArray!(E[]) && isForwardRange!(R1) && 
isForwardRange!(R2) && (hasLength!(R2) || isSomeString!(R2))) 
cannot deduce template function from argument types 
!()(Appender!(immutable(dchar)[]),immutable(dchar)[],immutable(dchar)[],immutable(dchar)[])
arsd/html.d(1995): Error: template instance 
std.array.replace!(immutable(dchar), immutable(dchar)[], 
immutable(dchar)[]) error instantiating
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/range.d(608): 
Error: static assert  "Cannot put a immutable(dchar) into a 
Appender!(immutable(dchar)[])"
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(1691):  
       instantiated from here: put!(Appender!(immutable(dchar)[]), 
immutable(dchar))
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(2079):  
       instantiated from here: 
formatValue!(Appender!(immutable(dchar)[]), immutable(dchar), 
dchar)
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(1723):  
       instantiated from here: 
formatRange!(Appender!(immutable(dchar)[]), immutable(dchar)[], 
dchar)
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(2863):  
       ... (1 instantiations, -v to show) ...
/home/me/d/dmd2/linux/bin32/../../src/phobos/std/format.d(415):   
      instantiated from here: 
formatGeneric!(Appender!(immutable(dchar)[]), immutable(dchar)[], 
dchar)
arsd/html.d(2047):        instantiated from here: 
formattedWrite!(Appender!(immutable(dchar)[]), dchar, 
immutable(dchar)[],immutable(dchar)[],immutable(dchar)[],immutable(dchar)[],immutable(dchar)[])
make: *** [all] Error 1




I'm not making that up. dmd has been doing it for several 
releases now - I noticed it started up when I started using 
ctRegex in cgi.d and keep hoping it will go away with each 
release.

The only relevant line there is:

base.d(2141): Error: undefined identifier gf, did you mean 
template to(T)?


Remember, all I changed in this whole (working) program was the 
addition of "gf;" in the middle of it.