Bug 22611 – ImportC: Need better error messages involving structs

C code: typedef struct { unsigned char c[4]; } stb_easy_font_color; stb_easy_font_color c = { 255,255,255,255 }; // use structure copying to avoid needing depending on memcpy() DMD output: Error: 3 extra initializer(s) for `struct __tag21` __tag21 is generated by the compiler, so the alias stb_easy_font_color should be reported instead. Forum thread: https://forum.dlang.org/post/[email protected]

Related: https://issues.dlang.org/show_bug.cgi?id=22610

Internally, the compiler does not keep track of which typedefs are pointing to a struct tag, so it's kinda awkward to fix.

The line number is reported with the error, so that's not a big issue. Something like Error: 3 extra initializer(s) in struct would be better than Error: 3 extra initializer(s) for `struct __tag21` because __tag21 is not known to the programmer.

C11 allows extra initializers (gcc warns about them), but ImportC doesn't do warnings. The error message no longer appears.