String class wrapper with a preallocated buffer of size buff_sz. More...

#include <sql_string.h>

Inheritance diagram for StringBuffer< buff_sz >:

Public Member Functions
	StringBuffer ()

	StringBuffer (const CHARSET_INFO *cs)

	StringBuffer (const char str, size_t length, const CHARSET_INFO cs)

Public Member Functions inherited from String
	String ()

	String (size_t length_arg)

	String (const char str, const CHARSET_INFO cs)

	String (const char str, size_t len, const CHARSET_INFO cs)

	String (char str, size_t len, const CHARSET_INFO cs)

	String (const String &str)

	String (String &&str) noexcept

	~String ()

void	set_charset (const CHARSET_INFO *charset_arg)

const CHARSET_INFO *	charset () const

size_t	length () const

size_t	alloced_length () const

const char &	operator[] (size_t i) const

char &	operator[] (size_t i)

void	length (size_t len)

bool	is_empty () const

void	mark_as_const ()

const char *	ptr () const

char *	ptr ()

char *	c_ptr ()

char *	c_ptr_quick ()

char *	c_ptr_safe ()
	Returns a pointer to a C-style null-terminated string. More...

LEX_STRING	lex_string ()

LEX_CSTRING	lex_cstring () const

void	set (String &str, size_t offset, size_t arg_length)

void	set (char str, size_t arg_length, const CHARSET_INFO cs)
	Points the internal buffer to the supplied one. More...

void	set (const char str, size_t arg_length, const CHARSET_INFO cs)

bool	set_ascii (const char *str, size_t arg_length)

void	set_quick (char str, size_t arg_length, const CHARSET_INFO cs)

bool	set_int (longlong num, bool unsigned_flag, const CHARSET_INFO *cs)

bool	set (longlong num, const CHARSET_INFO *cs)

bool	set (ulonglong num, const CHARSET_INFO *cs)

bool	set_real (double num, uint decimals, const CHARSET_INFO *cs)
	Sets the contents of this string to the string representation of the given double value. More...

void	chop ()

void	mem_claim (bool claim)

void	mem_free ()

bool	alloc (size_t arg_length)

bool	real_alloc (size_t arg_length)

bool	mem_realloc (size_t arg_length, bool force_on_heap=false)
	Allocates a new buffer on the heap for this String. More...

void	shrink (size_t arg_length)

bool	is_alloced () const

String &	operator= (const String &s)=delete

String &	operator= (String &&s) noexcept

void	takeover (String &s)
	Takeover the buffer owned by another string. More...

bool	copy ()

bool	copy (const String &s)
	Copies the internal buffer from str. More...

bool	copy (const char s, size_t arg_length, const CHARSET_INFO cs)

bool	copy (const char s, size_t arg_length, const CHARSET_INFO from_cs, const CHARSET_INFO to_cs, uint errors)
	Copies the character data into this String, with optional character set conversion. More...

bool	needs_conversion (const CHARSET_INFO *cs_to) const

bool	is_valid_string (const CHARSET_INFO *cs_to) const

bool	copy_aligned (const char s, size_t arg_length, size_t offset, const CHARSET_INFO cs)

bool	set_or_copy_aligned (const char s, size_t arg_length, const CHARSET_INFO cs)

bool	append (const String &s)

bool	append (std::string_view s)

bool	append (LEX_STRING *ls)

bool	append (Simple_cstring str)

bool	append (const char *s, size_t arg_length)

bool	append (const char s, size_t arg_length, const CHARSET_INFO cs)

bool	append_ulonglong (ulonglong val)
	Append an unsigned longlong to the string. More...

bool	append_longlong (longlong val)
	Append a signed longlong to the string. More...

bool	append_with_prefill (const char *s, size_t arg_length, size_t full_length, char fill_char)

bool	append_parenthesized (int64_t nr)
	Append a parenthesized number to String. More...

int	strstr (const String &search, size_t offset=0) const
	Search for a substring. More...

int	strrstr (const String &search, size_t offset=0) const
	Reverse search for a substring. More...

String	substr (int offset, int count) const
	Returns substring of given characters length, starting at given character offset. More...

bool	replace (size_t offset, size_t arg_length, const char *to, size_t length)

bool	replace (size_t offset, size_t arg_length, const String &to)

bool	append (char chr)

bool	fill (size_t max_length, char fill)

size_t	numchars () const

size_t	charpos (size_t i, size_t offset=0) const

bool	reserve (size_t space_needed)

bool	reserve (size_t space_needed, size_t grow_by)

char *	prep_append (size_t arg_length, size_t step_alloc)

bool	append (const char *s, size_t arg_length, size_t step_alloc)

void	print (String *print) const

void	swap (String &s) noexcept

bool	uses_buffer_owned_by (const String *s) const

bool	is_ascii () const

char *	dup (MEM_ROOT *root) const
	Make a zero-terminated copy of our value,allocated in the specified MEM_ROOT. More...

Private Attributes
char	buff [buff_sz]

Additional Inherited Members
Static Public Member Functions inherited from String
static void *	operator new (size_t size, MEM_ROOT *mem_root, const std::nothrow_t &arg=std::nothrow) noexcept

static void	operator delete (void *ptr_arg, size_t size)

static void	operator delete (void , MEM_ROOT , const std::nothrow_t &) noexcept

static bool	needs_conversion (size_t arg_length, const CHARSET_INFO cs_from, const CHARSET_INFO cs_to, size_t *offset)
	Checks that the source string can be just copied to the destination string without conversion. More...

static bool	needs_conversion_on_storage (size_t arg_length, const CHARSET_INFO cs_from, const CHARSET_INFO cs_to)

Detailed Description

template<size_t buff_sz>
class StringBuffer< buff_sz >

String class wrapper with a preallocated buffer of size buff_sz.

This class allows to replace sequences of: char buff[12345]; String str(buff, sizeof(buff)); str.length(0); with a simple equivalent declaration: StringBuffer<12345> str;

Constructor & Destructor Documentation

◆ StringBuffer() [1/3]

template<size_t buff_sz>

StringBuffer< buff_sz >::StringBuffer ( )

inline

◆ StringBuffer() [2/3]

template<size_t buff_sz>

StringBuffer< buff_sz >::StringBuffer ( const CHARSET_INFO * cs )

inlineexplicit

◆ StringBuffer() [3/3]

template<size_t buff_sz>

StringBuffer< buff_sz >::StringBuffer	(	const char *	str,
		size_t	length,
		const CHARSET_INFO *	cs
	)

inline

Member Data Documentation

◆ buff

template<size_t buff_sz>

char StringBuffer< buff_sz >::buff[buff_sz]

private

The documentation for this class was generated from the following file:

include/sql_string.h

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ StringBuffer() [1/3]

◆ StringBuffer() [2/3]

◆ StringBuffer() [3/3]

Member Data Documentation

◆ buff