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* @license Apache-2.0
*
* Copyright (c) 2025 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable stdlib/empty-line-before-comment */
'use strict';
// MAIN //
/**
* Returns an object mapping supported data type strings to enumeration constants.
*
* ## Notes
*
* - Downstream consumers of this mapping should **not** rely on specific integer values (e.g., `INT8 == 0`). Instead, the object should be used in an opaque manner.
* - The main purpose of this function is JavaScript and C inter-operation of ndarray objects.
*
* @returns {Object} object mapping supported data type strings to enumeration constants
*
* @example
* var table = dtypeEnums();
* // returns {...}
*/
function dtypeEnums() {
// NOTE: the following should match the C enumeration in `@stdlib/ndarray/dtypes`!!!!
return {
// Boolean data types:
'bool': 0,
// Integer data types:
'int8': 1,
'uint8': 2,
'uint8c': 3,
'int16': 4,
'uint16': 5,
'int32': 6,
'uint32': 7,
'int64': 8,
'uint64': 9,
// 'int128': 10, // uncomment once supported
// 'uint128': 11,
// 'int256': 12,
// 'uint256': 13,
// Floating-point data types:
'float16': 10,
// 'bfloat16': 15,
'float32': 11,
'float64': 12,
// 'float128': 18, // uncomment once supported
// Complex floating-point number data types:
'complex32': 13,
'complex64': 14,
'complex128': 15,
// Data type for "binary" data (i.e., data stored in a Node.js `Buffer` object):
'binary': 16,
// Data type for "generic" JavaScript values (objects):
'generic': 17,
// Define a signaling value which is guaranteed not to be a valid type enumeration value:
'notype': 18,
// Indicate the start of user defined type numbers (leaving room for type growth above):
'userdefined_type': 256
};
}
// EXPORTS //
module.exports = dtypeEnums;
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