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-rw-r--r--src/common/apply_permutation.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/common/apply_permutation.h b/src/common/apply_permutation.h
index 4de224690..4fd952686 100644
--- a/src/common/apply_permutation.h
+++ b/src/common/apply_permutation.h
@@ -32,12 +32,18 @@
#include <vector>
#include <functional>
+#include "misc_log_ex.h"
namespace tools
{
-void apply_permutation(std::vector<size_t> permutation, const std::function<void(size_t, size_t)> &swap)
+template<typename F>
+void apply_permutation(std::vector<size_t> permutation, const F &swap)
{
+ //sanity check
+ for (size_t n = 0; n < permutation.size(); ++n)
+ CHECK_AND_ASSERT_THROW_MES(std::find(permutation.begin(), permutation.end(), n) != permutation.end(), "Bad permutation");
+
for (size_t i = 0; i < permutation.size(); ++i)
{
size_t current = i;
@@ -55,6 +61,7 @@ void apply_permutation(std::vector<size_t> permutation, const std::function<void
template<typename T>
void apply_permutation(const std::vector<size_t> &permutation, std::vector<T> &v)
{
+ CHECK_AND_ASSERT_THROW_MES(permutation.size() == v.size(), "Mismatched vector sizes");
apply_permutation(permutation, [&v](size_t i0, size_t i1){ std::swap(v[i0], v[i1]); });
}