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-rw-r--r--src/cryptonote_basic/hardfork.cpp12
-rw-r--r--tests/unit_tests/hardfork.cpp25
2 files changed, 33 insertions, 4 deletions
diff --git a/src/cryptonote_basic/hardfork.cpp b/src/cryptonote_basic/hardfork.cpp
index 95f1ecab9..aa6746304 100644
--- a/src/cryptonote_basic/hardfork.cpp
+++ b/src/cryptonote_basic/hardfork.cpp
@@ -379,11 +379,15 @@ uint8_t HardFork::get_ideal_version(uint64_t height) const
uint64_t HardFork::get_earliest_ideal_height_for_version(uint8_t version) const
{
- for (unsigned int n = heights.size() - 1; n > 0; --n) {
- if (heights[n].version <= version)
- return heights[n].height;
+ uint64_t height = std::numeric_limits<uint64_t>::max();
+ for (auto i = heights.rbegin(); i != heights.rend(); ++i) {
+ if (i->version >= version) {
+ height = i->height;
+ } else {
+ break;
+ }
}
- return 0;
+ return height;
}
uint8_t HardFork::get_next_version() const
diff --git a/tests/unit_tests/hardfork.cpp b/tests/unit_tests/hardfork.cpp
index 7c27b9c5d..372cee513 100644
--- a/tests/unit_tests/hardfork.cpp
+++ b/tests/unit_tests/hardfork.cpp
@@ -554,3 +554,28 @@ TEST(get, higher)
ASSERT_EQ(hf.get_ideal_version(7), 3);
}
+TEST(get, earliest_ideal_height)
+{
+ TestDB db;
+ HardFork hf(db, 1, 0, 1, 1, 4, 50);
+
+ // v h t
+ ASSERT_TRUE(hf.add_fork(1, 0, 0));
+ ASSERT_TRUE(hf.add_fork(2, 2, 1));
+ ASSERT_TRUE(hf.add_fork(5, 5, 2));
+ ASSERT_TRUE(hf.add_fork(6, 10, 3));
+ ASSERT_TRUE(hf.add_fork(9, 15, 4));
+ hf.init();
+
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(1), 0);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(2), 2);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(3), 5);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(4), 5);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(5), 5);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(6), 10);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(7), 15);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(8), 15);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(9), 15);
+ ASSERT_EQ(hf.get_earliest_ideal_height_for_version(10), std::numeric_limits<uint64_t>::max());
+}
+