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lsst::afw::formatters Namespace Reference

Functions

ndarray::Array< std::uint8_t, 1, 1 > stringToBytes (std::string const &str)
 Encode a std::string as a vector of uint8.
 
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.
 

Function Documentation

◆ bytesToString()

std::string lsst::afw::formatters::bytesToString ( ndarray::Array< std::uint8_t const, 1, 1 > const & bytes)

Decode a std::string from a vector of uint8 returned by stringToBytes.

Definition at line 54 of file Utils.cc.

54 {
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}

◆ stringToBytes()

ndarray::Array< std::uint8_t, 1, 1 > lsst::afw::formatters::stringToBytes ( std::string const & str)

Encode a std::string as a vector of uint8.

Definition at line 43 of file Utils.cc.

43 {
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}