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Asked: 2026-05-28T20:06:45+00:00

When I create a std::string using the default constructor, is ANY memory allocated on

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When I create a std::string using the default constructor, is ANY memory allocated on the heap? I’m hoping the answer does not depend on the implementation and is standardized. Consider the following:

std::string myString;
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  1. Editorial Team

    Unfortunately, the answer is no according to N3290.

    Table 63 Page 643 says:

    • data() a non-null pointer that is copyable and can have 0 added to it
    • size() 0
    • capacity() an unspecified value

    The table is identical for C++03.

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