Murl::System::CLib Functions

Forward to C-runtime library functions. More...

Typedefs
using	Murl::System::CLib::CompareFunctionType = SInt32(*)(const void *source1, const void *source2)
	Definition of the compare function. More...

Functions
String	Murl::System::CLib::PrintToString (const Char *format,...)
	Print formatted variadic arguments into string. More...
String	Murl::System::CLib::PrintToStringArg (const Char *format, void *vaListPtr)
	Print formatted variadic arguments into string. More...
SInt32	Murl::System::CLib::PrintToDebug (const Char *format,...)
	Print formatted variadic arguments to the system specific debug output. More...
SInt32	Murl::System::CLib::PrintToError (const Char *format,...)
	Print formatted variadic arguments to the system specific error output. More...
SInt32	Murl::System::CLib::PrintToWarning (const Char *format,...)
	Print formatted variadic arguments to the system specific warning output. More...
SInt32	Murl::System::CLib::PrintToCString (Char *targetString, UInt32 targetLength, const Char *format,...)
	Print formatted variadic arguments into a C-string. More...
SInt32	Murl::System::CLib::PrintToFile (const Char *fileName, const Char *format,...)
	Print formatted variadic arguments to file. More...
SInt32	Murl::System::CLib::PrintToStdOut (const Char *format,...)
	Print formatted variadic arguments to stdout. More...
SInt32	Murl::System::CLib::ScanString (const Char *stringToScan, const Char *format,...)
	Scan formatted string into variadic arguments. More...
void *	Murl::System::CLib::Alloc (UInt64 byteSize)
	Allocate heap memory. More...
void	Murl::System::CLib::Free (void *data)
	Free allocated heap memory. More...
void *	Murl::System::CLib::MemSet (void *destination, UInt32 value, UInt64 byteSize)
	Fill memory with a value. More...
void *	Murl::System::CLib::MemCopy (void *destination, const void *source, UInt64 byteSize)
	Copy non-overlapping memory. More...
void *	Murl::System::CLib::MemMove (void *destination, const void *source, UInt64 byteSize)
	Copy overlapping memory. More...
SInt32	Murl::System::CLib::MemCompare (const void *source1, const void *source2, UInt64 byteSize)
	Compare memory. More...
void	Murl::System::CLib::QuickSort (void *items, UInt32 numberOfItems, UInt32 itemByteSize, CompareFunctionType compareFunction)
	Quick sort items. More...
void *	Murl::System::CLib::BinarySearch (const void *key, const void *items, UInt32 numberOfItems, UInt32 itemByteSize, CompareFunctionType compareFunction)
	Binary search an item. More...
void	Murl::System::CLib::SRand (UInt32 seed)
	Seed the C-runtime library random number generator. More...
SInt32	Murl::System::CLib::Rand ()
	Get a random number form the C-runtime library random number generator. More...
SInt32	Murl::System::CLib::StrCmp (const Char *string1, const Char *string2)
	Compare C-strings. More...
UInt32	Murl::System::CLib::StrLen (const Char *string)
	Get the length of C-string. More...
Bool	Murl::System::CLib::IsDigit (SInt32 characterCode)
	Check if a character is a numeric character. More...
Bool	Murl::System::CLib::IsAlpha (SInt32 characterCode)
	Check if a character is an alphabetic character. More...
Bool	Murl::System::CLib::IsAlphaNumeric (SInt32 characterCode)
	Check if a character is an alphanumeric character. More...
Bool	Murl::System::CLib::IsPunctuation (SInt32 characterCode)
	Check if a character is a punctuation character. More...
Bool	Murl::System::CLib::IsSpace (SInt32 characterCode)
	Check if a character is a spacing character. More...
Bool	Murl::System::CLib::IsHexDigit (SInt32 characterCode)
	Check if a character is a hexadecimal character. More...
Bool	Murl::System::CLib::IsControl (SInt32 characterCode)
	Check if a character is a control character. More...
String	Murl::System::CLib::GetNormalizedFileSystemPath (const Char *nativePath)
	Get a normalized (UTF8) representation of a native file system path. More...
String	Murl::System::CLib::GetNativeFileSystemPath (const Char *normalizedPath)
	Get a native representation of a normalized (UTF8) file system path. More...
Bool	Murl::System::CLib::FileExists (const Char *path)
	Check if a file exists. More...
Bool	Murl::System::CLib::DeleteFile (const Char *path)
	Delete a file. More...
Bool	Murl::System::CLib::MoveFile (const Char *oldPath, const Char *newPath)
	Move/rename a file. More...
Bool	Murl::System::CLib::FolderExists (const Char *path)
	Check if a folder exists. More...
Bool	Murl::System::CLib::CreateFolder (const Char *path)
	Create a folder. More...
Bool	Murl::System::CLib::DeleteFolder (const Char *path, Bool recursively)
	Delete a folder. More...
Bool	Murl::System::CLib::MoveFolder (const Char *oldPath, const Char *newPath)
	Move/rename a folder. More...
Bool	Murl::System::CLib::GetItemCreationTime (const Char *path, UInt64 &seconds, UInt64 &nanoSeconds)
	Get the creation time of a file or folder. More...
Bool	Murl::System::CLib::GetItemModificationTime (const Char *path, UInt64 &seconds, UInt64 &nanoSeconds)
	Get the time a file or folder was most recently modified. More...
SInt32	Murl::System::CLib::LaunchShellCommand (const Char *commandLine)
	Launch a shell command if supported by the platform. More...
void	Murl::System::CLib::Abort ()
	Call the C-runtime abort function.
void	Murl::System::CLib::Exit (SInt32 exitCode)
	Call the C-runtime exit function. More...

Detailed Description

Forward to C-runtime library functions.

Typedef Documentation

CompareFunctionType

using Murl::System::CLib::CompareFunctionType = typedef SInt32(*)(const void* source1, const void* source2)

Definition of the compare function.

Parameters

source1	Pointer to the 1st source.
source2	Pointer to the 2nd source.

Returns

Zero if source1 is equal to source2, negative if source1 is lesser than source2, positive if source1 is greater than source2.

Function Documentation

PrintToString()

String Murl::System::CLib::PrintToString	(	const Char *	format,
			...
	)

Print formatted variadic arguments into string.

Parameters

format	The format string.
...	The variadic arguments.

Returns

The string with the printed arguments.

PrintToStringArg()

String Murl::System::CLib::PrintToStringArg	(	const Char *	format,
		void *	vaListPtr
	)

Print formatted variadic arguments into string.

Parameters

format	The format string.
vaListPtr	Pointer to the variadic arguments.

Returns

The string with the printed arguments.

PrintToDebug()

SInt32 Murl::System::CLib::PrintToDebug	(	const Char *	format,
			...
	)

Print formatted variadic arguments to the system specific debug output.

Parameters

format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

PrintToError()

SInt32 Murl::System::CLib::PrintToError	(	const Char *	format,
			...
	)

Print formatted variadic arguments to the system specific error output.

Parameters

format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

PrintToWarning()

SInt32 Murl::System::CLib::PrintToWarning	(	const Char *	format,
			...
	)

Print formatted variadic arguments to the system specific warning output.

Parameters

format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

PrintToCString()

SInt32 Murl::System::CLib::PrintToCString	(	Char *	targetString,
		UInt32	targetLength,
		const Char *	format,
			...
	)

Print formatted variadic arguments into a C-string.

Parameters

targetString	The C-string to print into.
targetLength	The byte length of the C-string to print into.
format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

PrintToFile()

SInt32 Murl::System::CLib::PrintToFile	(	const Char *	fileName,
		const Char *	format,
			...
	)

Print formatted variadic arguments to file.

The printed string is appended to the file.

Parameters

fileName	The file name to print into.
format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

PrintToStdOut()

SInt32 Murl::System::CLib::PrintToStdOut	(	const Char *	format,
			...
	)

Print formatted variadic arguments to stdout.

Parameters

format	The format string.
...	The variadic arguments.

Returns

The number of characters printed excluding the null terminator.

ScanString()

SInt32 Murl::System::CLib::ScanString	(	const Char *	stringToScan,
		const Char *	format,
			...
	)

Scan formatted string into variadic arguments.

Parameters

stringToScan	The string to scan.
format	The format string.
...	The variadic arguments.

Returns

The number of items assigned.

Alloc()

void* Murl::System::CLib::Alloc

(

UInt64

byteSize

)

Allocate heap memory.

Parameters

byteSize

The number of bytes to allocate.

Returns

The pointer to the allocated memory.

Free()

void Murl::System::CLib::Free

(

void *

data

)

Free allocated heap memory.

Parameters

data	The pointer to the allocated memory.

MemSet()

void* Murl::System::CLib::MemSet	(	void *	destination,
		UInt32	value,
		UInt64	byteSize
	)

Fill memory with a value.

Parameters

destination	Pointer to the destination memory.
value	The byte-value to fill the memory.
byteSize	The number of bytes to fill.

Returns

The pointer to the destination memory.

MemCopy()

void* Murl::System::CLib::MemCopy	(	void *	destination,
		const void *	source,
		UInt64	byteSize
	)

Copy non-overlapping memory.

Use MemMove if the memory areas do overlap.

Parameters

destination	Pointer to the destination memory.
source	Pointer to the source memory.
byteSize	The number of bytes to copy.

Returns

The pointer to the destination memory.

MemMove()

void* Murl::System::CLib::MemMove	(	void *	destination,
		const void *	source,
		UInt64	byteSize
	)

Copy overlapping memory.

Parameters

destination	Pointer to the destination memory.
source	Pointer to the source memory.
byteSize	The number of bytes to copy.

Returns

The pointer to the destination memory.

MemCompare()

SInt32 Murl::System::CLib::MemCompare	(	const void *	source1,
		const void *	source2,
		UInt64	byteSize
	)

Compare memory.

Parameters

source1	Pointer to the 1st source memory.
source2	Pointer to the 2nd source memory.
byteSize	The number of bytes to compare.

Returns

Zero if source1 is equal to source2, negative if source1 is lesser than source2, positive if source1 is greater than source2.

QuickSort()

void Murl::System::CLib::QuickSort	(	void *	items,
		UInt32	numberOfItems,
		UInt32	itemByteSize,
		CompareFunctionType	compareFunction
	)

Quick sort items.

Parameters

items	Pointer to the items to sort.
numberOfItems	Number of items to sort.
itemByteSize	Bytesize of an item.
compareFunction	The CompareFunctionType for the item.

BinarySearch()

void* Murl::System::CLib::BinarySearch	(	const void *	key,
		const void *	items,
		UInt32	numberOfItems,
		UInt32	itemByteSize,
		CompareFunctionType	compareFunction
	)

Binary search an item.

The items to search for are required to be sorted.

Parameters

key	Pointer to the item to find.
items	Pointer to the items to search for.
numberOfItems	Number of items to search for.
itemByteSize	Bytesize of an item.
compareFunction	The CompareFunctionType for the item.

Returns

Pointer to the item found or null if item is not found. If there are multiple elements matching key, the element returned is unspecified.

SRand()

void Murl::System::CLib::SRand

(

UInt32

seed

)

Seed the C-runtime library random number generator.

Parameters

seed	The seed for the random number generator.

Rand()

SInt32 Murl::System::CLib::Rand

(

)

Get a random number form the C-runtime library random number generator.

Returns

The random number.

StrCmp()

SInt32 Murl::System::CLib::StrCmp	(	const Char *	string1,
		const Char *	string2
	)

Compare C-strings.

Parameters

string1	Pointer to the 1st C-string.
string2	Pointer to the 2nd C-string.

Returns

Zero if string1 is equal to string2, negative if string1 is lesser than string2, positive if string1 is greater than string2.

StrLen()

UInt32 Murl::System::CLib::StrLen

(

const Char *

string

)

Get the length of C-string.

Parameters

string

Pointer to the C-string.

Returns

The length of the C-string.

IsDigit()

Bool Murl::System::CLib::IsDigit

(

SInt32

characterCode

)

Check if a character is a numeric character.

Parameters

characterCode

The character to check.

Returns

true if the character is a numeric character.

IsAlpha()

Bool Murl::System::CLib::IsAlpha

(

SInt32

characterCode

)

Check if a character is an alphabetic character.

Parameters

characterCode

The character to check.

Returns

true if the character is an alphabetic character.

IsAlphaNumeric()

Bool Murl::System::CLib::IsAlphaNumeric

(

SInt32

characterCode

)

Check if a character is an alphanumeric character.

Parameters

characterCode

The character to check.

Returns

true if the character is an alphanumeric character.

IsPunctuation()

Bool Murl::System::CLib::IsPunctuation

(

SInt32

characterCode

)

Check if a character is a punctuation character.

Parameters

characterCode

The character to check.

Returns

true if the character is a punctuation character.

IsSpace()

Bool Murl::System::CLib::IsSpace

(

SInt32

characterCode

)

Check if a character is a spacing character.

Parameters

characterCode

The character to check.

Returns

true if the character is a spacing character.

IsHexDigit()

Bool Murl::System::CLib::IsHexDigit

(

SInt32

characterCode

)

Check if a character is a hexadecimal character.

Parameters

characterCode

The character to check.

Returns

true if the character is a hexadecimal character.

IsControl()

Bool Murl::System::CLib::IsControl

(

SInt32

characterCode

)

Check if a character is a control character.

Parameters

characterCode

The character to check.

Returns

true if the character is a control character.

GetNormalizedFileSystemPath()

String Murl::System::CLib::GetNormalizedFileSystemPath

(

const Char *

nativePath

)

Get a normalized (UTF8) representation of a native file system path.

Parameters

nativePath

The file system path in its native representation.

Returns

true The normalized path.

GetNativeFileSystemPath()

String Murl::System::CLib::GetNativeFileSystemPath

(

const Char *

normalizedPath

)

Get a native representation of a normalized (UTF8) file system path.

Parameters

normalizedPath

The file system path in its normalized representation.

Returns

true The native path.

FileExists()

Bool Murl::System::CLib::FileExists

(

const Char *

path

)

Check if a file exists.

Parameters

path	The path and the filename.

Returns

true if the file exists.

DeleteFile()

Bool Murl::System::CLib::DeleteFile

(

const Char *

path

)

Delete a file.

Parameters

path	The path to the file to delete.

Returns

true if successful.

MoveFile()

Bool Murl::System::CLib::MoveFile	(	const Char *	oldPath,
		const Char *	newPath
	)

Move/rename a file.

Parameters

oldPath	The current path to the file to move.
newPath	The new path of the file.

Returns

true if successful.

FolderExists()

Bool Murl::System::CLib::FolderExists

(

const Char *

path

)

Check if a folder exists.

Parameters

path	The path and the folder.

Returns

true if the folder exists.

CreateFolder()

Bool Murl::System::CLib::CreateFolder

(

const Char *

path

)

Create a folder.

Parameters

path	The path and the folder to create.

Returns

true if successful.

DeleteFolder()

Bool Murl::System::CLib::DeleteFolder	(	const Char *	path,
		Bool	recursively
	)

Delete a folder.

Parameters

path	The path and the folder to delete.
recursively	If true, the folder and all contents are deleted. If false, the function fails when the folder is not empty.

Returns

true if successful.

MoveFolder()

Bool Murl::System::CLib::MoveFolder	(	const Char *	oldPath,
		const Char *	newPath
	)

Move/rename a folder.

Parameters

oldPath	The current path to the folder to move.
newPath	The new path of the folder.

Returns

true if successful.

GetItemCreationTime()

Bool Murl::System::CLib::GetItemCreationTime	(	const Char *	path,
		UInt64 &	seconds,
		UInt64 &	nanoSeconds
	)

Get the creation time of a file or folder.

Note: explicit item creation time is not available on all platforms, e.g. Android, Linux or emscripten. In this case, false is returned.

Parameters

path	The path to the file or folder to query.
seconds	A reference to an UInt64 value to receive the seconds part.
nanoSeconds	A reference to an UInt64 value to receive the nanoseconds part.

Returns

true if successful.

GetItemModificationTime()

Bool Murl::System::CLib::GetItemModificationTime	(	const Char *	path,
		UInt64 &	seconds,
		UInt64 &	nanoSeconds
	)

Get the time a file or folder was most recently modified.

Parameters

path	The path to the file or folder to query.
seconds	A reference to an UInt64 value to receive the seconds part.
nanoSeconds	A reference to an UInt64 value to receive the nanoseconds part.

Returns

true if successful.

LaunchShellCommand()

SInt32 Murl::System::CLib::LaunchShellCommand

(

const Char *

commandLine

)

Launch a shell command if supported by the platform.

Internally, this calls the CLib std::system function.

Parameters

commandLine

The shell command line, including any parameters.

Returns

The shell command's exit status.

Exit()

void Murl::System::CLib::Exit

(

SInt32

exitCode

)

Call the C-runtime exit function.

On iOS this function does nothing.

Parameters

exitCode

The exit code.