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Showing content from https://timsong-cpp.github.io/cppwp/n4140/depr.strstreambuf.cons below:

[depr.strstreambuf.cons]

explicit strstreambuf(streamsize alsize_arg = 0);

Effects: Constructs an object of class strstreambuf, initializing the base class with streambuf(). The postconditions of this function are indicated in Table [tab:future.strstreambuf.effects].

Table

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effects

strstreambuf(void* (*palloc_arg)(size_t), void (*pfree_arg)(void*));

Effects: Constructs an object of class strstreambuf, initializing the base class with streambuf(). The postconditions of this function are indicated in Table [tab:future.strstreambuf1.effects].

Table

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effects

strstreambuf(char* gnext_arg, streamsize n, char* pbeg_arg = 0); strstreambuf(signed char* gnext_arg, streamsize n, signed char* pbeg_arg = 0); strstreambuf(unsigned char* gnext_arg, streamsize n, unsigned char* pbeg_arg = 0);

Effects: Constructs an object of class strstreambuf, initializing the base class with streambuf(). The postconditions of this function are indicated in Table [tab:future.strstreambuf2.effects].

Table

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effects

gnext_arg shall point to the first element of an array object whose number of elements N is determined as follows:

• If n > 0, N is n.

• If n == 0, N is std::strlen(gnext_arg).

• If n < 0, N is INT_MAX.338

If pbeg_arg is a null pointer, the function executes:

setg(gnext_arg, gnext_arg, gnext_arg + N);

Otherwise, the function executes:

setg(gnext_arg, gnext_arg, pbeg_arg);
setp(pbeg_arg,  pbeg_arg + N);

strstreambuf(const char* gnext_arg, streamsize n);
strstreambuf(const signed char* gnext_arg, streamsize n);
strstreambuf(const unsigned char* gnext_arg, streamsize n);

Effects: Behaves the same as strstreambuf((char*)gnext_arg,n), except that the constructor also sets constant in strmode.

virtual ~strstreambuf();

Effects: Destroys an object of class strstreambuf. The function frees the dynamically allocated array object only if strmode & allocated != 0 and strmode & frozen == 0. ([depr.strstreambuf.virtuals] describes how a dynamically allocated array object is freed.)

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