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src/panda/basic_string.h  view on Meta::CPAN

 * - SSO support (small string optimization). Up to 23 bytes for 64bit / 11 bytes for 32bit.
 *       It does not mean that all strings <= MAX_SSO_CHARS are in SSO mode. SSO mode is used only when otherwise panda::string would have to allocate
 *       and copy something. For example if you call "otherstr = mystr.substr(offset, len)", then otherstr will not use SSO even if len <= MAX_SSO_CHARS,
 *       because it prefers to do nothing (COW-mode) instead of copying content to SSO location.
 * - Support for getting r/w internal data buffer to manually fill it.
 *       The content of other strings which shares the data with current string will not be affected.
 * - Reallocate instead of deallocate/allocate when possible, which in many cases is much faster
 * - Supports auto convertations between basic_strings with different Allocator template parameter without copying and allocating anything.
 *       For example any basic_string<...> can be assigned to/from string as if they were of the same class.
 *
 * All these features covers almost all generic use cases, including creating zero-copy cascade parsers which in other case would lead to a lot of
 * pain.
 *
 * c_str() is not supported, because strings are not null-terminated
 */

namespace string_detail {
    template <typename S>
    struct mutable_charref {
        using value_type = typename S::value_type;
        using size_type  = typename S::size_type;