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Implement fmt::format_to into std::vector<char> (#4211)

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* Implement fmt::format_to into std::vector<char>

Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>

* Move get_container to the trait

Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>

---------

Signed-off-by: Vladislav Shchapov <vladislav@shchapov.ru>
This commit is contained in:
Vladislav Shchapov
2024-10-26 21:23:59 +05:00
committed by GitHub
parent 4daa3d591f
commit 168df9a064
2 changed files with 31 additions and 4 deletions
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11
test/compile-test.cc
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@ -8,6 +8,7 @@
#include "fmt/compile.h"
#include <type_traits>
#include <vector>
#include "fmt/chrono.h"
#include "fmt/ranges.h"
@ -229,10 +230,14 @@ TEST(compile_test, unknown_format_fallback) {
EXPECT_EQ(" 42 ",
fmt::format(FMT_COMPILE("{name:^4}"), fmt::arg("name", 42)));
std::vector<char> v;
fmt::format_to(std::back_inserter(v), FMT_COMPILE("{name:^4}"),
std::vector<char> v1;
fmt::format_to(std::back_inserter(v1), FMT_COMPILE("{}"), 42);
EXPECT_EQ("42", fmt::string_view(v1.data(), v1.size()));
std::vector<char> v2;
fmt::format_to(std::back_inserter(v2), FMT_COMPILE("{name:^4}"),
fmt::arg("name", 42));
EXPECT_EQ(" 42 ", fmt::string_view(v.data(), v.size()));
EXPECT_EQ(" 42 ", fmt::string_view(v2.data(), v2.size()));
char buffer[4];
auto result = fmt::format_to_n(buffer, 4, FMT_COMPILE("{name:^5}"),