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Make error_code formatter debug-enabled

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Victor Zverovich
2025-10-19 10:35:45 -07:00
parent a2289b8593
commit 08d38d6e78
2 changed files with 7 additions and 0 deletions
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2
include/fmt/std.h
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@@ -513,6 +513,8 @@ template <> struct formatter<std::error_code> {
bool debug_ = false; bool debug_ = false;
public: public:
FMT_CONSTEXPR void set_debug_format(bool set = true) { debug_ = set; }
FMT_CONSTEXPR auto parse(parse_context<>& ctx) -> const char* { FMT_CONSTEXPR auto parse(parse_context<>& ctx) -> const char* {
auto it = ctx.begin(), end = ctx.end(); auto it = ctx.begin(), end = ctx.end();
if (it == end) return it; if (it == end) return it;

5
test/std-test.cc
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@@ -13,6 +13,7 @@
#include <vector> #include <vector>
#include "fmt/os.h" // fmt::system_category #include "fmt/os.h" // fmt::system_category
#include "fmt/ranges.h"
#include "gtest-extra.h" // StartsWith #include "gtest-extra.h" // StartsWith
#ifdef __cpp_lib_filesystem #ifdef __cpp_lib_filesystem
@@ -335,6 +336,10 @@ TEST(std_test, error_code) {
EXPECT_EQ(fmt::format("{:s}", ec), ec.message()); EXPECT_EQ(fmt::format("{:s}", ec), ec.message());
EXPECT_EQ(fmt::format("{:?}", std::error_code(42, generic)), EXPECT_EQ(fmt::format("{:?}", std::error_code(42, generic)),
"\"generic:42\""); "\"generic:42\"");
EXPECT_EQ(fmt::format("{}",
std::map<std::error_code, int>{
{std::error_code(42, generic), 0}}),
"{\"generic:42\": 0}");
} }
template <typename Catch> void exception_test() { template <typename Catch> void exception_test() {