std::ios_base::openmode
typedef /*implementation defined*/ openmode; | ? | ? |
|---|---|---|
static constexpr openmode app = /*implementation defined*/ static constexpr openmode binary = /*implementation defined*/ static constexpr openmode in = /*implementation defined*/ static constexpr openmode out = /*implementation defined*/ static constexpr openmode trunc = /*implementation defined*/ static constexpr openmode ate = /*implementation defined*/ | ? | ? |
指定可用的文件打开标志。这是一个BitmaskType，定义了以下常量：
Constant | Explanation |
|---|---|
app | seek to the end of stream before each write |
binary | open in binary mode |
in | open for reading |
out | open for writing |
trunc | discard the contents of the stream when opening |
ate | seek to the end of stream immediately after open |
例
另见
open | opens a file and configures it as the associated character sequence (public member function of std::basic_filebuf) |
|---|---|
(constructor) | constructs a basic_stringbuf object (public member function of std::basic_stringbuf) |
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