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安裝中文字典英文字典辭典工具!
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- How to safely read a line from an std::istream? - Stack Overflow
I want to safely read a line from an std::istream The stream could be anything, e g , a connection on a Web server or something processing files submitted by unknown sources There are many answers
- Optimal way to get a string or char* into an istream?
If you talk about wanting a raw pointer into the buffer of an istream, you can't do it Streams get their data on-demand if they need them either from files, terminals or else, optionally buffering their stuff (well, not exactly right You can use a strstream, which accepts a raw pointer and reads writes directly from that
- c++ - Reading binary istream byte by byte - Stack Overflow
I was attempting to read a binary file byte by byte using an ifstream I've used istream methods like get() before to read entire chunks of a binary file at once without a problem But my current
- stream - Overloading istream operator gt; gt; c++ - Stack Overflow
Say I have a vector of chars and I pushed it into a stream as a string, rather than a vector of chars, how would i get back the vector of chars using operator>>? class C{ private: vect
- c++ - How can I use non-default delimiters when reading a text file . . .
istream_iterator<string> uses >> to read the individual strings from the stream, so if you use them directly, you should get the same results The parts you need to include are creating the locale and using imbue to make the stream use that locale
- Understanding the design of std::istream::read - Stack Overflow
0 std::istream has the prototype istream read (char* s, streamsize n) the actual number of bytes read should be gotten by calling istream::gcount(), also the validity of the istream can be known from ios::good istream::read(char* s, streamsize n) reads an unformatted block of data (without NULL termination) of size n into the array at s
- How to use istream with strings - Stack Overflow
I would like to read an file into a string I am looking for different ways for how to do it efficiently Using a fixed size *char buffer I have received an answer from Tony what creates a 16 kb
- Better way to determine length of a std::istream? - Stack Overflow
The "best" way is to avoid needing the length :) Not all streams are seekable (For example, imagine an istream on a network socket) The return type from tellg () is not necessarily numeric (the only requirement is that it can be passed back to seekg () to return to the same position) Even if it is numeric, it is not necessarily a number of bytes For example, it could be a "magic" value
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