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fix ring-buffer for simple constexpr usage

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This commit is contained in:
Ferdinand Bachmann
2020-04-18 13:46:17 +02:00
parent 43150587a8
commit 47f3737fb4
3 changed files with 14 additions and 6 deletions
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9
test/push-iterate-constexpr.cpp
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@ -1,6 +1,7 @@
#include <array>
#include <ring-buffer.h>
#ifdef RING_BUFFER_CONSTEXPR
template <typename T, size_t N>
constexpr bool array_equal(const std::array<T, N>& a, const std::array<T, N>& b) {
for (size_t i = 0; i < N; i++) {
@ -11,7 +12,8 @@ constexpr bool array_equal(const std::array<T, N>& a, const std::array<T, N>& b)
}
constexpr bool test() {
ring_buffer<int, 4> buf;
std::array<int, 4> init{0, 0, 0, 0};
ring_buffer<int, 4> buf(init);
buf.push_back(1);
buf.push_back(2);
@ -22,7 +24,7 @@ constexpr bool test() {
{
std::array<int, 4> expected{13, 14, 15, 16};
std::array<int, 4> actual;
std::array<int, 4> actual{0, 0, 0, 0};
int actual_index = 0;
for (int& i : buf) {
i += 10;
@ -35,7 +37,7 @@ constexpr bool test() {
{
std::array<int, 4> expected{24, 25, 26, 17};
std::array<int, 4> actual;
std::array<int, 4> actual{0, 0, 0, 0};
int actual_index = 0;
for (int& i : buf) {
i += 10;
@ -48,5 +50,6 @@ constexpr bool test() {
}
static_assert(test());
#endif
int main() {}