How does one set an array in hlsl? - hlsl

Question

In glsl, array = int[8]( 0, 0, 0, 0, 0, 0, 0, 0 ); works fine, but in hlsl this doesn't seem to be the case. It doesn't seem to be mentioned in any guides how you do this. What exactly am I meant to do?

Answer 1

For example, like this:
int array[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
Edit:
Ah, you mean array assignment. It seems like that is not possible for now. In addition to trying every possible sensible option, I cross-compiled simple glsl code to hlsl code using glslcc (which uses spirv-cross).
GLSL code:
#version 450
layout (location = SV_Target0) out vec4 fragColor;
void main()
{
int array[4] = {0, 0, 0, 0};
array = int[4]( 1, 0, 1, 0);
fragColor = vec4(array[0], array[1], array[2], array[3]);
}
HLSL code:
static const int _13[4] = { 0, 0, 0, 0 };
static const int _15[4] = { 1, 0, 1, 0 };
static float4 fragColor;
struct SPIRV_Cross_Output
{
float4 fragColor : SV_Target0;
};
void frag_main()
{
int array[4] = _13;
array = _15;
fragColor = float4(float(array[0]), float(array[1]), float(array[2]), float(array[3]));
}
SPIRV_Cross_Output main()
{
frag_main();
SPIRV_Cross_Output stage_output;
stage_output.fragColor = fragColor;
return stage_output;
}
As you can see, in this case the equivalent hlsl code uses static const array and then assigns it since that kind of array assignment is allowed in HLSL (and makes a deep copy unlike in C/C++).