https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116638
Bug ID: 116638
Summary: False-positive maybe-uninitizlied warning: ‘*(const
std::array<int, 3>*)((char*)&<anonymous> +12)’ may be
used uninitialized [-Werror=maybe-uninitialized]
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: accelerator0099 at gmail dot com
Target Milestone: ---
Created attachment 59066
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59066&action=edit
source and output
Source: M2.cpp
#include <array>
#include <variant>
#include <vector>
struct MatchTaskInfo {
using GrayRange = std::pair<int, int>;
using ColorRange = std::pair<std::array<int, 3>, std::array<int, 3>>;
using Range = std::variant<GrayRange, ColorRange>;
using Ranges = std::vector<Range>;
};
class MatcherConfig {
public:
struct Params {
MatchTaskInfo::Ranges mask_ranges;
bool mask_src = false;
bool mask_close = false;
};
/* inline */ void set_mask_range(int lower, int upper, bool mask_src =
false, bool mask_close = false);
protected:
Params m_params;
};
void MatcherConfig::set_mask_range(int lower, int upper, bool mask_src, bool
mask_close) {
m_params.mask_ranges = { MatchTaskInfo::GrayRange { lower, upper } };
m_params.mask_src = mask_src;
m_params.mask_close = mask_close;
}
Compile: g++ -std=gnu++20 -Wall -Wextra -Wpedantic -Werror -O2 -c M2.cpp
Output: (see attachment)
