On Monday, 17 March 2025 at 12:28:38 UTC, Maximilian Naderer
wrote:
Hello people,
i have the following example. Compiled with dmd and ldc2
dmd main.d -betterC
ldc2 main.d -betterC
with dmd the compilation fails with
lld-link: error: undefined symbol: _memsetFloat
>>> referenced by app.obj:(main)
Error: linker exited with status 1
C:\dev\dlang\dmd2\windows\bin64\lld-link.exe /NOLOGO
"app.obj"
/LIBPATH:"C:\dev\dlang\dmd2\windows\bin64\..\lib64\mingw
The compilation fails only with dmd when I'm not assigning all
the fields of a struct like in example #3. Is this a compiler
error ?
```d
struct MyStruct {
float[4] data;
float[16] matrix;
}
extern(C) int main() {
MyStruct sWorks = MyStruct(
data: [1.0f, 2.0f, 3.0f, 4.0f],
matrix: [
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
]);
MyStruct sWorks2;
sWorks2.data = [ 1.0f, 0.0f, 0.0f, 1.0f ];
MyStruct sNotWorking = MyStruct(
data: [ 1.0f, 0.0f, 0.0f, 1.0f ],
matrix: [
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
]);
return 0;
}
```
Sorry the example should have been
```d
struct MyStruct {
float[4] data;
float[16] matrix;
}
extern(C) int main() {
MyStruct sWorks = MyStruct(
data: [1.0f, 2.0f, 3.0f, 4.0f],
matrix: [
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
]);
MyStruct sWorks2;
sWorks2.data = [ 1.0f, 0.0f, 0.0f, 1.0f ];
MyStruct sNotWorking = MyStruct(
matrix: [
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
]);
return 0;
}
```
