my_version.cc File Reference

Functions to compare server version strings and and determine if clone should be allowed. More...

#include <algorithm>
#include <array>
#include <cassert>
#include <string>

Typedefs
typedef std::array< std::string, CLONE_PARSE_ARRAY_SIZE >	ParseArray
	Parsed version strings array type. More...

Functions
static bool	is_valid_version (const std::string &version)
	Helper function to determine if version string is made up of digits only. More...
static ParseArray	parse_version_string (std::string version, bool &is_valid)
	Parse a version string into an array of strings corresponding to the MAJOR, MINOR, PATCH and BUILD versions. More...
bool	are_versions_clone_compatible (std::string ver1, std::string ver2)
	Compares versions and determine if clone is allowed. More...

Variables
constexpr unsigned int	CLONE_PARSE_ARRAY_SIZE = 4
	Size of the parsed version strings array. More...
constexpr unsigned int	MAJOR = 0
	Index of the array correpsonding to parts of version. More...
constexpr unsigned int	MINOR = 1
constexpr unsigned int	PATCH = 2
constexpr unsigned int	BUILD = 3
constexpr unsigned long	CLONE_BACKPORT_VERSION = 37

Detailed Description

Functions to compare server version strings and and determine if clone should be allowed.

Typedef Documentation

ParseArray

typedef std::array<std::string, CLONE_PARSE_ARRAY_SIZE> ParseArray

Parsed version strings array type.

Function Documentation

is_valid_version()

static bool is_valid_version ( const std::string &  version )

inlinestatic

Helper function to determine if version string is made up of digits only.

Parameters

[in]

version

version string being validated

Returns

true if the non-empty string only contains digits

parse_version_string()

static ParseArray parse_version_string ( std::string  version, bool &  is_valid  )

static

Parse a version string into an array of strings corresponding to the MAJOR, MINOR, PATCH and BUILD versions.

A string of length 0 is filled in case a particular version string could not be parsed. For example, "Major.Minor.Patch-Build" yields ["Major", "Minor", "Patch", "Build"], "8.0.23-SR1" yields ["8", "0", "23", "SR1"],

Parameters

[in]	version	input version string
[in,out]	is_valid	true if version string is valid

Returns

an array of strings containing the parsed components of the version string.

Variable Documentation

BUILD

constexpr unsigned int BUILD = 3

constexpr

CLONE_BACKPORT_VERSION

constexpr unsigned long CLONE_BACKPORT_VERSION = 37

constexpr

CLONE_PARSE_ARRAY_SIZE

constexpr unsigned int CLONE_PARSE_ARRAY_SIZE = 4

constexpr

Size of the parsed version strings array.

MAJOR

constexpr unsigned int MAJOR = 0

constexpr

Index of the array correpsonding to parts of version.

MINOR

constexpr unsigned int MINOR = 1

constexpr

PATCH

constexpr unsigned int PATCH = 2

constexpr