Namespaces
	constants

	v1
	Versioned namespace of sorting functions in case standard evolves but instruments want to freeze.

Classes
struct	BasicKeyword
	A type safe version of LiteralKeyword that consist of the three basic components of a FITS keyword keyword record: name, value and optional comment. More...

struct	BasicKeywordBase
	Non template base class that is purely used to avoid type-deduction issues of ValueType. More...

class	CfitsioError
	Represents errors from cfitsio. More...

struct	EsoKeywordTraits

struct	KeywordNameView

class	LiteralKeyword
	Represents the literal 80-character FITS keyword record. More...

class	MemoryFitsFile
	In-memory FITS file. More...

struct	ValueKeywordTraits

Typedefs
using	UniqueFitsFile = std::unique_ptr< fitsfile, void()(fitsfile ) noexcept >
	Defines unique ownership type to cfitsio fitsfile. More...

using	ValueKeyword = BasicKeyword< ValueKeywordTraits >
	Standard FITS value keyword. More...

using	EsoKeyword = BasicKeyword< EsoKeywordTraits >
	ESO hiearchical keyword. More...

using	KeywordVariant = std::variant< ValueKeyword, EsoKeyword, LiteralKeyword >
	The different variants of keywords that are supported. More...

using	TypedKeywordVariant = std::variant< ValueKeyword, EsoKeyword >
	Subset of value-typed keywords. More...

using	KeywordVector = std::vector< KeywordVariant >
	Vector of keywords. More...

Enumerations
enum	HduType : int { HduType::Image = IMAGE_HDU, HduType::Ascii = ASCII_TBL, HduType::Binary = BINARY_TBL }

enum	OpenMode : uint8_t { OpenMode::ReadOnly, OpenMode::ReadWrite }

enum	KeywordType : uint8_t { Value, Eso, Commentary }
	Type of FITS keyword. More...

enum	KeywordClass : int { KeywordClass::Structure = TYP_STRUC_KEY, KeywordClass::Compression = TYP_CMPRS_KEY, KeywordClass::Scale = TYP_SCAL_KEY, KeywordClass::Null = TYP_NULL_KEY, KeywordClass::Dim = TYP_DIM_KEY, KeywordClass::Range = TYP_RANG_KEY, KeywordClass::Unit = TYP_UNIT_KEY, KeywordClass::Disp = TYP_DISP_KEY, KeywordClass::HduId = TYP_HDUID_KEY, KeywordClass::Checksum = TYP_CKSUM_KEY, KeywordClass::Wcs = TYP_WCS_KEY, KeywordClass::RefSys = TYP_REFSYS_KEY, KeywordClass::Comment = TYP_COMM_KEY, KeywordClass::Continue = TYP_CONT_KEY, KeywordClass::User = TYP_USER_KEY }
	Fits keyword type. More...

enum	ConflictPolicy { ConflictPolicy::Replace, ConflictPolicy::Skip }

Functions

void SelectHduNum (fitsfile *ptr, int hdu_num)

Select current HDU number. More...

void DefaultClose (fitsfile *ptr) noexcept

Default close function that is used by UniqueFitsFile as a deleter. More...

void InitPrimaryHduEmpty (fitsfile *ptr)

Initializes an empty FITS file with an empty primary HDU (no keywords) More...

void InitPrimaryHduNoImage (fitsfile *ptr)

Initializes an empty FITS file with a primary HDU. More...

UniqueFitsFile CreateEmpty (char const *filename)

Creates empty FITS file using fits_create_file and returns a pointer with a deleter that will close the file. More...

UniqueFitsFile Open (char const *filename, OpenMode mode)

Open file. More...

std::vector< LiteralKeyword > ReadKeywords (fitsfile *ptr, int hdu_num)

Read keywords from HDU identifed by absolute position hdu_num. More...

std::vector< LiteralKeyword > ReadKeywords (fitsfile *ptr, HduType type, std::string_view name, std::optional< int > version)

void DeleteAllKeywords (fitsfile *ptr, int hdu_num)

Delete all keywords from HDU. More...

void MakeHduSpace (fitsfile *ptr, int hdu_num, size_t additional_keys)

void WriteKeywords (fitsfile *ptr, int hdu_num, std::vector< LiteralKeyword > const &keywords, std::optional< ssize_t > *remaining_size=nullptr)

Write keywords to HDU identified by number hdu_num. More...

void WriteChecksum (fitsfile *ptr, int hdu_num)

Write or update checksum keywords DATASUM and CHECKSUM to HDU specified by hdu_num. More...

std::vector< LiteralKeyword > ReadKeywords (fitsfile *ptr, std::string_view name, std::optional< int > version=std::nullopt)

Read keywords from HDU identifed by EXTNAME and EXTVER keywords. More...

std::vector< KeywordVariant > ParseJsonKeywords (char const *keywords)

Parse and return FITS keywords. More...

std::vector< KeywordVariant > ParseJsonKeywords (nlohmann::json const &keywords, nlohmann::json_pointer< nlohmann::json > const &=nlohmann::json_pointer< nlohmann::json >())

Parse and return FITS keywords. More...

nlohmann::json SerializeJsonKeywordValue (BasicKeywordBase::ValueType const &value)

SerializeJsons the keyword value variant to JSON. More...

nlohmann::json SerializeJsonKeyword (KeywordVariant const &keyword)

SerializeJsons keyword to JSON. More...

nlohmann::json SerializeJsonKeywords (std::vector< KeywordVariant > const &keywords)

SerializeJsons keyword to JSON. More...

bool operator== (KeywordNameView lhs, KeywordNameView rhs) noexcept

bool operator!= (KeywordNameView lhs, KeywordNameView rhs) noexcept

bool operator< (LiteralKeyword const &, LiteralKeyword const &) noexcept

Sort by logical keyword name (not DICD sort) More...

bool operator== (LiteralKeyword const &lhs, LiteralKeyword const &rhs) noexcept

Compares equally if keyword record in lhs is the same as rhs (char for char). More...

bool operator!= (LiteralKeyword const &, LiteralKeyword const &) noexcept

Compares inequally if keyword record in lhs is not the same as rhs (char for char). More...

std::ostream & operator<< (std::ostream &os, LiteralKeyword const &kw)

bool operator< (LiteralKeyword const &, EsoKeyword const &) noexcept