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add constexpr-array-shim to test constexpr on C++14

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This commit is contained in:
Ferdinand Bachmann
2020-04-18 14:15:25 +02:00
parent 97c4bed1ec
commit fba15b1a72
4 changed files with 79 additions and 18 deletions
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18
test/push-iterate-constexpr.cpp
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@ -2,8 +2,10 @@
#include <ring-buffer.h>
#ifdef RING_BUFFER_CONSTEXPR
#include "constexpr-array-shim.h"
template <typename T, size_t N>
constexpr bool array_equal(const std::array<T, N>& a, const std::array<T, N>& b) {
constexpr bool array_equal(const constexpr_array<T, N>& a, const constexpr_array<T, N>& b) {
for (size_t i = 0; i < N; i++) {
if (a[i] != b[i]) return false;
}
@ -12,8 +14,8 @@ constexpr bool array_equal(const std::array<T, N>& a, const std::array<T, N>& b)
}
constexpr bool test() {
std::array<int, 4> init{0, 0, 0, 0};
ring_buffer<int, 4> buf(init);
constexpr_array<int, 4> init{0, 0, 0, 0};
basic_ring_buffer<constexpr_array<int, 4>> buf(init);
buf.push_back(1);
buf.push_back(2);
@ -23,8 +25,8 @@ constexpr bool test() {
buf.push_back(6);
{
std::array<int, 4> expected{13, 14, 15, 16};
std::array<int, 4> actual{0, 0, 0, 0};
constexpr_array<int, 4> expected{13, 14, 15, 16};
constexpr_array<int, 4> actual{0, 0, 0, 0};
int actual_index = 0;
for (int& i : buf) {
i += 10;
@ -36,8 +38,8 @@ constexpr bool test() {
buf.push_back(7);
{
std::array<int, 4> expected{24, 25, 26, 17};
std::array<int, 4> actual{0, 0, 0, 0};
constexpr_array<int, 4> expected{24, 25, 26, 17};
constexpr_array<int, 4> actual{0, 0, 0, 0};
int actual_index = 0;
for (int& i : buf) {
i += 10;
@ -49,7 +51,7 @@ constexpr bool test() {
return true;
}
static_assert(test());
static_assert(test(), "");
#endif
int main() {}