23 General utilities library [utilities]

23.7 Variants [variant]

23.7.11 Class bad_­variant_­access [variant.bad.access]

class bad_variant_access : public exception {
public:
  bad_variant_access() noexcept;
  const char* what() const noexcept override;
};
1
#

Objects of type bad_­variant_­access are thrown to report invalid accesses to the value of a variant object.

bad_variant_access() noexcept;

2
#

Constructs a bad_­variant_­access object.

const char* what() const noexcept override;

3
#

Returns: An implementation-defined ntbs.