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add some notes and static assertions about template sizes

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This commit is contained in:
allem
2020-01-30 19:14:59 -05:00
parent b5a868c424
commit e069088437
2 changed files with 8 additions and 2 deletions
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9
vis/include/geometry.hpp
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@@ -13,6 +13,8 @@
*/
template<unsigned N>
struct Primitive {
static_assert(N > 0, "Primitives must contain at least one point. Primitive<0> or lower is impossible.");
std::array<unsigned, N> inds;
Primitive() = default;
@@ -230,7 +232,7 @@ Mesh<N> triangulate(
const tc::Group &context,
const std::vector<int> &g_gens
) {
if (g_gens.size() + 1 != N)
if (g_gens.size() + 1 != N) // todo make static assert
throw std::logic_error("g_gens size must be one less than N");
const auto &combos = Combos(g_gens, g_gens.size() - 1);
@@ -247,12 +249,15 @@ Mesh<N> triangulate(
return merge(meshes);
}
/**
* Single-index primitives should not be further triangulated.
*/
template<>
Mesh<1> triangulate<1>(
const tc::Group &context,
const std::vector<int> &g_gens
) {
if (not g_gens.empty())
if (not g_gens.empty()) // todo make static assert
throw std::logic_error("g_gens must be empty for a trivial Mesh");
Mesh<1> res;