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Range support

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This commit is contained in:
kitegi
2020-10-24 11:25:29 +02:00
committed by Victor Zverovich
parent cb224ecaa3
commit f4ca065cfb
3 changed files with 160 additions and 9 deletions
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52
test/ranges-test.cc
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@@ -22,6 +22,18 @@
# include <string>
# include <vector>
TEST(RangesTest, FormatArray) {
int32_t ia[] = {1, 2, 3, 5, 7, 11};
auto iaf = fmt::format("{}", ia);
EXPECT_EQ("{1, 2, 3, 5, 7, 11}", iaf);
}
TEST(RangesTest, Format2dArray) {
int32_t ia[][2] = {{1, 2}, {3, 5}, {7, 11}};
auto iaf = fmt::format("{}", ia);
EXPECT_EQ("{{1, 2}, {3, 5}, {7, 11}}", iaf);
}
TEST(RangesTest, FormatVector) {
std::vector<int32_t> iv{1, 2, 3, 5, 7, 11};
auto ivf = fmt::format("{}", iv);
@@ -177,7 +189,30 @@ template <typename T> class non_const_only_range {
const_iterator end() { return vec.end(); }
};
template <typename T> class noncopyable_range {
private:
std::vector<T> vec;
public:
using const_iterator = typename ::std::vector<T>::const_iterator;
template <typename... Args>
explicit noncopyable_range(Args&&... args)
: vec(::std::forward<Args>(args)...) {}
noncopyable_range(noncopyable_range const&) = delete;
noncopyable_range(noncopyable_range&) = delete;
const_iterator begin() const { return vec.begin(); }
const_iterator end() const { return vec.end(); }
};
TEST(RangesTest, JoinRange) {
noncopyable_range<int> w(3u, 0);
EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(w, ",")));
EXPECT_EQ("0,0,0",
fmt::format("{}", fmt::join(noncopyable_range<int>(3u, 0), ",")));
non_const_only_range<int> x(3u, 0);
EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(x, ",")));
EXPECT_EQ(
@@ -193,6 +228,23 @@ TEST(RangesTest, JoinRange) {
EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(z, ",")));
}
TEST(RangesTest, Range) {
noncopyable_range<int> w(3u, 0);
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", w));
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", noncopyable_range<int>(3u, 0)));
non_const_only_range<int> x(3u, 0);
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", x));
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", non_const_only_range<int>(3u, 0)));
std::vector<int> y(3u, 0);
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", y));
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", std::vector<int>(3u, 0)));
const std::vector<int> z(3u, 0);
EXPECT_EQ("{0, 0, 0}", fmt::format("{}", z));
}
#if !FMT_MSC_VER || FMT_MSC_VER >= 1927
struct unformattable {};