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Return a character with bounds checking.
char const& at(std::size_t
pos,boost::source_location
const& loc = BOOST_CURRENT_LOCATION) const;
Returns a reference to the character specified at location pos
.
Constant.
Strong guarantee.
Name |
Description |
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A zero-based index to access. |
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Type |
Thrown On |
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boost::system::system_error |
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