front overloads
Declared in <bslstl_string.h>
Return a reference providing modifiable access to the character at the first position in this string. The behavior is undefined if this string is empty.
CHAR_TYPE&
front();
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Return a reference providing non-modifiable access to the character at the first position in this string. The behavior is undefined if this string is empty.
CHAR_TYPE const&
front() const;
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