Create a basic_ostringstream object. Use the specified initialString as the value that will be returned by a call to str prior to any streaming operations performed on this object. Use the specified modeBitMask to indicate whether the underlying stream‐buffer may also be read from (rdbuf is created using modeBitMask | ios_base::out). Optionally specify the allocator used to supply memory. If allocator is not supplied, a default‐constructed object of the (template parameter) ALLOCATOR type is used. If the ALLOCATOR argument is of type bsl::allocator (the default), then allocator, if supplied, shall be convertible to bslma::Allocator *. If the ALLOCATOR argument is of type bsl::allocator and allocator is not supplied, the currently installed default allocator will be used to supply memory.

Synopsis

Declared in <bslstl_ostringstream.h>

template<class SALLOC>
basic_ostringstream(
    bsl::basic_string<CHAR_TYPE, CHAR_TRAITS, SALLOC> const& initialString,
    ios_base::openmode modeBitMask,
    allocator_type const& allocator = allocator_type())
requires !bsl::is_same<ALLOCATOR, SALLOC>::value;

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