bada C++ std::字符串流
bada 在读取 stringstream 时崩溃。
json::Object objDocument = d();
std::stringstream stream;
json::Writer::Write(objDocument, stream);
json::Object objDocument2;
json::Reader::Read(objDocument2, stream); // <=== crash
或者像这样：
std::string *requestString = new std::string(data);
AppLog(requestString->c_str()); // <=== contains correct data
std::stringstream stream;
stream << *requestString;
const char *ddd = stream.str().c_str();
AppLog(ddd); // <==== contains random data
我该如何解决它？
谁有想法或有相同的经历？
bada crashed on stringstream read.
json::Object objDocument = d();
std::stringstream stream;
json::Writer::Write(objDocument, stream);
json::Object objDocument2;
json::Reader::Read(objDocument2, stream); // <=== crash
or like this:
std::string *requestString = new std::string(data);
AppLog(requestString->c_str()); // <=== contains correct data
std::stringstream stream;
stream << *requestString;
const char *ddd = stream.str().c_str();
AppLog(ddd); // <==== contains random data
How can I solve it?
Who had ideas or same experience?
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字符串
stream.str()是一个临时字符串，在使用它获取c_str()之后指针将不再有效，该字符串会立即被销毁。如果将引用保存在临时文件中，该字符串将保留下来：
The string
stream.str()is a temporary which is destroyed right after you use it to getc_str()after which the pointer is no longer valid.If you save a reference in a temporary the string will stick around:
第一个问题可能是寻道问题。写入后，
stringstream中的当前位置位于末尾，但您想从头开始读取。The first problem is probably a seek issue. After the write, the current position in the
stringstreamis at the end, but you want to read from the start.