LSST Applications g11f7dcd041+3309dba821,g1cd03abf6b+5538b8be6d,g1ce3e0751c+f991eae79d,g28da252d5a+9cd75b2bbf,g2bbee38e9b+b474e213a6,g2bc492864f+b474e213a6,g2cdde0e794+1e3907a55c,g2e95ee2dae+b3f7f8b914,g347aa1857d+b474e213a6,g35bb328faa+b86e4b8053,g3a166c0a6a+b474e213a6,g4322eb9e3a+f7440700bb,g461a3dce89+b86e4b8053,g52b1c1532d+b86e4b8053,g78056777b3+b52dbcd3a1,g858d7b2824+d6777fb84b,g8cd86fa7b1+15b40b54d8,g9ddcbc5298+f24b38b85a,ga61afda322+d6777fb84b,ga68bd05109+bf27b4c466,gae0086650b+b86e4b8053,gbb886bcc26+43b45a029f,gbd462c55f0+538be87034,gc28159a63d+b474e213a6,gc2a6998b7e+f95f64aeae,gc30aee3386+6076c0b52b,gcaf7e4fdec+d6777fb84b,gcd45df26be+d6777fb84b,gcdd4ae20e8+490f2fb51f,gce08ada175+bde66f6e3f,gcf0d15dbbd+490f2fb51f,gdaeeff99f8+006e14e809,gdbce86181e+61a8f2cffc,ge3d4d395c2+5a6209b744,ge77125146a+06b6d19373,ge79ae78c31+b474e213a6,gf048a9a2f4+060b48ea8f,gf9c3535cb8+b86e4b8053,w.2024.28
LSST Data Management Base Package
Loading...
Searching...
No Matches
Utils.cc
Go to the documentation of this file.
1// -*- lsst-c++ -*-
2
3/*
4 * LSST Data Management System
5 * Copyright 2008, 2009, 2010 LSST Corporation.
6 *
7 * This product includes software developed by the
8 * LSST Project (http://www.lsst.org/).
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the LSST License Statement and
21 * the GNU General Public License along with this program. If not,
22 * see <http://www.lsstcorp.org/LegalNotices/>.
23 */
24
25//
26//##====---------------- ----------------====##/
27//
28// Support for formatters
29//
30//##====---------------- ----------------====##/
31
32#include <cstdint>
33#include <iostream>
34
36
37using std::int64_t;
38
39namespace lsst {
40namespace afw {
41namespace formatters {
42
43ndarray::Array<std::uint8_t, 1, 1> stringToBytes(std::string const& str) {
44 auto nbytes = str.size() * sizeof(char) / sizeof(std::uint8_t);
45 std::uint8_t const* byteCArr = reinterpret_cast<std::uint8_t const*>(str.data());
46 auto shape = ndarray::makeVector(nbytes);
47 auto strides = ndarray::makeVector(1);
48 // Make an Array that shares memory with `str` (and does not free that memory when destroyed),
49 // then return a copy; this is simpler than manually copying the data into a newly allocated array
50 ndarray::Array<std::uint8_t const, 1, 1> localArray = ndarray::external(byteCArr, shape, strides);
51 return ndarray::copy(localArray);
52}
53
54std::string bytesToString(ndarray::Array<std::uint8_t const, 1, 1> const& bytes) {
55 auto nchars = bytes.size() * sizeof(std::uint8_t) / sizeof(char);
56 char const* charCArr = reinterpret_cast<char const*>(bytes.getData());
57 return std::string(charCArr, nchars);
58}
59
60} // namespace formatters
61} // namespace afw
62} // namespace lsst
table::Key< table::Array< std::uint8_t > > bytes
Definition python.h:135
ndarray::Array< std::uint8_t, 1, 1 > stringToBytes(std::string const &str)
Encode a std::string as a vector of uint8.
Definition Utils.cc:43
std::string bytesToString(ndarray::Array< std::uint8_t const, 1, 1 > const &bytes)
Decode a std::string from a vector of uint8 returned by stringToBytes.
Definition Utils.cc:54
T size(T... args)