Files
ispc/tests/struct-zero-len-array-member.ispc
Matt Pharr 1da2834b1e Allow the last member of a struct to be an unsized/zero-length array.
This enables the C truck of allocating a dynamic amount of storage for
the struct in order to extend out the array to the desired length.
2012-03-25 13:10:12 -07:00

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struct Foo {
float x;
float a[0];
};
export uniform int width() { return programCount; }
export void f_f(uniform float RET[], uniform float aFOO[]) {
uniform int nFloats = 3+programCount;
varying Foo * uniform ptr = (varying Foo * uniform)(uniform new varying int32[nFloats]);
memset(ptr, 0, nFloats*sizeof(int32));
for (uniform int i = 0; i < nFloats-1; ++i)
ptr->a[i] = i;
ptr->x = aFOO[programIndex];
RET[programIndex] = ptr->a[1+programIndex];
}
export void result(uniform float RET[]) {
RET[programIndex] = 1 + programIndex;
}