array copy support

Signed-off-by: i-curve <[email protected]> #2
i-curve · Dec 18, 2023 · 227eacf · 227eacf
1 parent 0399c28
commit 227eacf
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Showing 3 changed files with 13 additions and 8 deletions.
diff --git a/README.md b/README.md
@@ -153,6 +153,17 @@ icurve::copy<AA, 3, BB, 2>(a, b);
 
 c++ array
 
+c style array
+
+```c++
+AA a[3];
+BB b[2] = {BB(1, "first", true), BB(2, "second", false)};
+
+icurve::copy(a, b);
+```
+
+c++ style array
+
 ```c++
 std::array<AA,3> a;
 std::array<BB, 2> b = {BB(1, "first", true), BB(2, "second", false)};

diff --git a/include/icurve/copypp.hh b/include/icurve/copypp.hh
@@ -1,7 +1,5 @@
 #pragma once
-#if _MSC_VER && _MSVC_LANG < 201402L
-#error "minimun c++ version is c++14."
-#elif __cplusplus < 201402L
+#if (_MSC_VER && _MSVC_LANG < 201402L) || __cplusplus < 201402L
 #error "minimun c++ version is c++14."
 #endif
 
@@ -78,8 +76,6 @@ void copy(std::span<D, L1> destination, std::span<S, L2> source) {
 template <typename D, typename S>
 void copy(std::vector<D> &destination, std::vector<S> &source) {
     destination.clear();
-    if (source.empty())
-        return;
     for (auto &item : source) {
         D tmp;
         copy(tmp, item);

diff --git a/include/icurve/copypp_only.hh b/include/icurve/copypp_only.hh
@@ -1,7 +1,5 @@
 #pragma once
-#if _MSC_VER && _MSVC_LANG < 201402L
-#error "minimun c++ version is c++14."
-#elif __cplusplus < 201402L
+#if (_MSC_VER && _MSVC_LANG < 201402L) || __cplusplus < 201402L
 #error "minimun c++ version is c++14."
 #endif