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ClikaRT::tables::Table::Row

class

Header: ClikaRT/tables/table.h

A lightweight read cursor over one row: just {table, row index}, no copy of the row's data. Typed getters WIDEN to the requested type: any integer (or Bool) column reads through get_int, any float column through get_double, a String column through get_string. Each raises ClikaRT::Error on a missing column, a null cell, or a column whose dtype the getter can't produce (e.g. get_int on a float column). Obtain a Row from rows() or row(i); the frame must outlive it.

Member functions​

Row()​

Row(const Table* table, std::int64_t row) noexcept

Bind a cursor to table's row row, normally obtained via rows() / row(i).

Declared in ClikaRT/tables/table.h, line 129

index()​

std::int64_t index() const noexcept

The 0-based row index this cursor points at.

Declared in ClikaRT/tables/table.h, line 132

get_double()​

double get_double(std::string_view column) const

The cell as double (float columns; see the class note's widening law).

Throws

  • ClikaRT::Error: on a missing column, a null cell, or a column this getter cannot produce.

Declared in ClikaRT/tables/table.h, line 138

get_int()​

std::int64_t get_int(std::string_view column) const

The cell as a signed 64-bit integer (integer / Bool columns).

Throws

Declared in ClikaRT/tables/table.h, line 141

get_string()​

std::string get_string(std::string_view column) const

The cell of a String column.

Throws

Declared in ClikaRT/tables/table.h, line 144

is_null()​

bool is_null(std::string_view column) const

True if the column is absent OR the cell is null (never raises).

Declared in ClikaRT/tables/table.h, line 146