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Route the -Wduplicated-branches pragma through Hedley

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Match #5485, which moved the binary writer's hand-rolled diagnostic
pragmas onto JSON_HEDLEY_PRAGMA (merged into develop while this branch
was open). The devirtualization's -Wduplicated-branches suppression in
write_compact_float was the one raw '#pragma GCC diagnostic' left; it
now uses JSON_HEDLEY_PRAGMA like the adjacent -Wfloat-equal line, still
guarded to GCC >= 7 and non-clang (the warning exists only there).

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XAYM1qhSA2FDaDcGfPW3fG
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-11 18:10:40 +02:00
co-authored by Claude
parent 966657ca49
commit ac58c6b3c5
2 changed files with 64 additions and 64 deletions
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single_include/nlohmann/json.hpp
+63 -63
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@@ -3787,71 +3787,71 @@ NLOHMANN_JSON_NAMESPACE_END
// SPDX-License-Identifier: MIT
#ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_
#define INCLUDE_NLOHMANN_JSON_FWD_HPP_
#define INCLUDE_NLOHMANN_JSON_FWD_HPP_
#include <cstdint> // int64_t, uint64_t
#include <map> // map
#include <memory> // allocator
#include <string> // string
#include <vector> // vector
#include <cstdint> // int64_t, uint64_t
#include <map> // map
#include <memory> // allocator
#include <string> // string
#include <vector> // vector
// #include <nlohmann/detail/abi_macros.hpp>
// #include <nlohmann/detail/abi_macros.hpp>
/*!
@brief namespace for Niels Lohmann
@see https://github.com/nlohmann
@since version 1.0.0
*/
NLOHMANN_JSON_NAMESPACE_BEGIN
/*!
@brief namespace for Niels Lohmann
@see https://github.com/nlohmann
@since version 1.0.0
*/
NLOHMANN_JSON_NAMESPACE_BEGIN
/*!
@brief default JSONSerializer template argument
/*!
@brief default JSONSerializer template argument
This serializer ignores the template arguments and uses ADL
([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl))
for serialization.
*/
template<typename T = void, typename SFINAE = void>
struct adl_serializer;
This serializer ignores the template arguments and uses ADL
([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl))
for serialization.
*/
template<typename T = void, typename SFINAE = void>
struct adl_serializer;
/// a class to store JSON values
/// @sa https://json.nlohmann.me/api/basic_json/
template<template<typename U, typename V, typename... Args> class ObjectType =
std::map,
template<typename U, typename... Args> class ArrayType = std::vector,
class StringType = std::string, class BooleanType = bool,
class NumberIntegerType = std::int64_t,
class NumberUnsignedType = std::uint64_t,
class NumberFloatType = double,
template<typename U> class AllocatorType = std::allocator,
template<typename T, typename SFINAE = void> class JSONSerializer =
adl_serializer,
class BinaryType = std::vector<std::uint8_t>, // cppcheck-suppress syntaxError
class CustomBaseClass = void>
class basic_json;
/// a class to store JSON values
/// @sa https://json.nlohmann.me/api/basic_json/
template<template<typename U, typename V, typename... Args> class ObjectType =
std::map,
template<typename U, typename... Args> class ArrayType = std::vector,
class StringType = std::string, class BooleanType = bool,
class NumberIntegerType = std::int64_t,
class NumberUnsignedType = std::uint64_t,
class NumberFloatType = double,
template<typename U> class AllocatorType = std::allocator,
template<typename T, typename SFINAE = void> class JSONSerializer =
adl_serializer,
class BinaryType = std::vector<std::uint8_t>, // cppcheck-suppress syntaxError
class CustomBaseClass = void>
class basic_json;
/// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document
/// @sa https://json.nlohmann.me/api/json_pointer/
template<typename RefStringType>
class json_pointer;
/// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document
/// @sa https://json.nlohmann.me/api/json_pointer/
template<typename RefStringType>
class json_pointer;
/*!
@brief default specialization
@sa https://json.nlohmann.me/api/json/
*/
using json = basic_json<>;
/*!
@brief default specialization
@sa https://json.nlohmann.me/api/json/
*/
using json = basic_json<>;
/// @brief a minimal map-like container that preserves insertion order
/// @sa https://json.nlohmann.me/api/ordered_map/
template<class Key, class T, class IgnoredLess, class Allocator>
struct ordered_map;
/// @brief a minimal map-like container that preserves insertion order
/// @sa https://json.nlohmann.me/api/ordered_map/
template<class Key, class T, class IgnoredLess, class Allocator>
struct ordered_map;
/// @brief specialization that maintains the insertion order of object keys
/// @sa https://json.nlohmann.me/api/ordered_json/
using ordered_json = basic_json<nlohmann::ordered_map>;
/// @brief specialization that maintains the insertion order of object keys
/// @sa https://json.nlohmann.me/api/ordered_json/
using ordered_json = basic_json<nlohmann::ordered_map>;
NLOHMANN_JSON_NAMESPACE_END
NLOHMANN_JSON_NAMESPACE_END
#endif // INCLUDE_NLOHMANN_JSON_FWD_HPP_
@@ -5950,7 +5950,7 @@ NLOHMANN_JSON_NAMESPACE_END
// #include <nlohmann/detail/macro_scope.hpp>
// JSON_HAS_CPP_17
// JSON_HAS_CPP_17
#ifdef JSON_HAS_CPP_17
#include <optional> // optional
#endif
@@ -20678,7 +20678,7 @@ class binary_writer
// (-Wduplicated-branches only exists from GCC 7 on; naming it on an older
// GCC would itself warn under -Wpragmas)
#if defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 7)
#pragma GCC diagnostic ignored "-Wduplicated-branches"
JSON_HEDLEY_PRAGMA(GCC diagnostic ignored "-Wduplicated-branches")
#endif
if (!std::isfinite(n) || ((static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) &&
static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
@@ -24113,10 +24113,10 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
const bool ignore_comments = false,
const bool ignore_trailing_commas = false,
const bool discard_number_values = false
)
)
{
return ::nlohmann::detail::parser<basic_json, InputAdapterType>(std::move(adapter),
std::move(cb), allow_exceptions, ignore_comments, ignore_trailing_commas, discard_number_values);
std::move(cb), allow_exceptions, ignore_comments, ignore_trailing_commas, discard_number_values);
}
private:
@@ -24138,7 +24138,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
// binary_writer over a concrete (non-virtual) sink appending into a std::vector,
// used by the vector-returning to_* overloads
template<typename CharType> using vector_binary_writer =
::nlohmann::detail::binary_writer<basic_json, CharType, ::nlohmann::detail::output_vector_sink<CharType>>;
::nlohmann::detail::binary_writer<basic_json, CharType, ::nlohmann::detail::output_vector_sink<CharType>>;
template<typename CharType> static vector_binary_writer<CharType> vector_writer(std::vector<CharType>& v)
{
return vector_binary_writer<CharType>(::nlohmann::detail::output_vector_sink<CharType>(v));
@@ -24822,8 +24822,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
detail::enable_if_t <
!detail::is_basic_json<U>::value && detail::is_compatible_type<basic_json_t, U>::value, int > = 0 >
basic_json(CompatibleType && val) noexcept(noexcept( // NOLINT(bugprone-forwarding-reference-overload,bugprone-exception-escape)
JSONSerializer<U>::to_json(std::declval<basic_json_t&>(),
std::forward<CompatibleType>(val))))
JSONSerializer<U>::to_json(std::declval<basic_json_t&>(),
std::forward<CompatibleType>(val))))
{
JSONSerializer<U>::to_json(*this, std::forward<CompatibleType>(val));
set_parents();
@@ -25645,7 +25645,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
detail::has_from_json<basic_json_t, ValueType>::value,
int > = 0 >
ValueType get_impl(detail::priority_tag<0> /*unused*/) const noexcept(noexcept(
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), std::declval<ValueType&>())))
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), std::declval<ValueType&>())))
{
auto ret = ValueType();
JSONSerializer<ValueType>::from_json(*this, ret);
@@ -25687,7 +25687,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
detail::has_non_default_from_json<basic_json_t, ValueType>::value,
int > = 0 >
ValueType get_impl(detail::priority_tag<1> /*unused*/) const noexcept(noexcept(
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>())))
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>())))
{
return JSONSerializer<ValueType>::from_json(*this);
}
@@ -25837,7 +25837,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
detail::has_from_json<basic_json_t, ValueType>::value,
int > = 0 >
ValueType & get_to(ValueType& v) const noexcept(noexcept(
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), v)))
JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), v)))
{
JSONSerializer<ValueType>::from_json(*this, v);
return v;