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[Bug fixes] Fix Windows UTF-8 path support for Paddle Inference model/json files #76259

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Merged
merged 1 commit into from
Nov 6, 2025
Merged

[Bug fixes] Fix Windows UTF-8 path support for Paddle Inference model/json files #76259

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21 changes: 19 additions & 2 deletions paddle/fluid/inference/api/helper.h
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,10 @@
#pragma once
#include <glog/logging.h>
#include <sys/stat.h>

#ifdef _WIN32
#include <windows.h>
#include <codecvt>
#endif
#include <fstream>
#if !defined(_WIN32)
#include <sys/time.h>
Expand Down Expand Up @@ -425,20 +428,34 @@ static void PrintTime(int batch_size,
}

static bool IsFileExists(const std::string &path) {
std::ifstream file(path);
#ifdef _WIN32
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::wstring wpath = converter.from_bytes(path);
std::ifstream file(wpath, std::ios::binary);
#else
std::ifstream file(path, std::ios::binary);
#endif
bool exists = file.is_open();
file.close();
return exists;
}

static bool IsDirectory(const std::string &path) {
#ifdef _WIN32
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::wstring wpath = converter.from_bytes(path);
DWORD attr = GetFileAttributesW(wpath.c_str());
if (attr == INVALID_FILE_ATTRIBUTES) return false;
return (attr & FILE_ATTRIBUTE_DIRECTORY);
#else
struct stat info;
if (stat(path.c_str(), &info) != 0) {
return false;
} else if (info.st_mode & S_IFDIR) {
return true;
}
return false;
#endif
}

void RegisterAllCustomOperator(bool use_pir);
Expand Down
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