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paddlepaddle--paddle/paddle/ap/include/fs/fs.h
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <fstream>
#include <streambuf>
#include <string>
#include "paddle/ap/include/adt/adt.h"
namespace ap::fs {
inline bool FileExists(const std::string& filepath) {
std::fstream fp;
fp.open(filepath, std::fstream::in);
if (fp.is_open()) {
fp.close();
return true;
} else {
return false;
}
}
// reference:
// https://stackoverflow.com/questions/2602013/read-whole-ascii-file-into-c-stdstring
inline adt::Result<adt::Ok> ReadFileContent(const std::string& file_path,
std::string* content) {
std::ifstream ifs(file_path);
ADT_CHECK(ifs.is_open()) << adt::errors::RuntimeError{
std::string() + "file open failed. file_path: " + file_path};
ifs.seekg(0, std::ios::end);
content->reserve(ifs.tellg());
ifs.seekg(0, std::ios::beg);
content->assign(std::istreambuf_iterator<char>(ifs),
std::istreambuf_iterator<char>());
return adt::Ok{};
}
inline adt::Result<adt::Ok> WriteFileContent(const std::string& file_path,
const std::string& content) {
std::ofstream ofs{file_path};
ADT_CHECK(ofs.is_open()) << adt::errors::RuntimeError{
std::string() + "file open failed. file_path: " + file_path};
ofs << content;
ofs.close();
return adt::Ok{};
}
} // namespace ap::fs