Re: Syntax Sugar for Initializing a Fixed float Array as void*?
On 11/30/22 16:48, Ali Çehreli wrote:
Functions are syntax sugar. :)
And I remembered std.array.staticArray. One its overloads should be useful:
import std;
void main() {
auto v3 = staticArray!(0.1f.repeat(5));
auto v4 = staticArray!5(0.1f.repeat);
writeln(v3);
writeln(v4);
}
Ali
Re: Syntax Sugar for Initializing a Fixed float Array as void*?
On Thursday, 1 December 2022 at 00:47:18 UTC, Adam D Ruppe wrote: On Thursday, 1 December 2022 at 00:39:21 UTC, jwatson-CO-edu wrote: Is there a way to write a single statement that creates a void pointer that points to an initialized float array? float[] f = [1,1,1]; some_function_taking_void(f.ptr); and it just works. Thank you, that was just the magic I needed! ```d float[4] arr = [0.1f, 0.1f, 0.1f, 1.0f]; // Init array with values SetShaderValue( shader, ambientLoc, arr.ptr, ShaderUniformDataType.SHADER_UNIFORM_VEC4 ); // ^^^---void* here ```
Re: Syntax Sugar for Initializing a Fixed float Array as void*?
On 11/30/22 16:39, jwatson-CO-edu wrote:
Is there a way to write a single statement that creates a void pointer
that points to an initialized float array? See below:
```d
float* arr = cast(float*) new float[4];
arr[0] = 0.1;
arr[1] = 0.1;
arr[2] = 0.1;
arr[3] = 0.1;
void* value = cast(void*) arr;
```
Functions are syntax sugar. :)
import std;
void* inittedArray(T)(T value, size_t count) {
auto arr = new T[count];
arr[] = value;
return arr.ptr;
}
void main() {
auto v = inittedArray(0.1f, 5);
// or something a little crazy:
auto v2 = 0.1f.repeat(5).array.ptr.to!(void*);
}
Ali
Re: Syntax Sugar for Initializing a Fixed float Array as void*?
On Thursday, 1 December 2022 at 00:39:21 UTC, jwatson-CO-edu wrote: Is there a way to write a single statement that creates a void pointer that points to an initialized float array? void* f = [1.0f, 1.0f, 1.0f].ptr; Though I'd recommend keeping it typed as float[] until the last possible moment. If you are passing it a function, remmeber pointers convert to void* automatically, so you can do like: float[] f = [1,1,1]; some_function_taking_void(f.ptr); and it just works.
