String/number conversion utilities. More...

Functions
int	ft_atoi (const char *str)
	Converts a string to an integer.
long	ft_atol (const char *str)
	Converts a string to a long integer.
char *	ft_itoa (int n)
	Converts an integer to a string.
char *	ft_utoa (unsigned int n)
	Converts an unsigned integer to a string.
char *	ft_ltoa (long n)
	Converts a long integer to a string.
char *	ft_ultoa_base (unsigned long n, const char *base)
	Converts an unsigned long to a string in a given base.
bool	parse_int (char s, int out)
	Parses a string to an integer with overflow detection.

Detailed Description

String/number conversion utilities.

Functions to convert between strings and numeric types.

Function Documentation

◆ ft_atoi()

int ft_atoi ( const char * str )

Converts a string to an integer.

Parameters

str	String to convert.

Returns: The converted integer value.

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◆ ft_atol()

long ft_atol ( const char * str )

Converts a string to a long integer.

Parameters

str	String to convert.

Returns: The converted long value.

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◆ ft_itoa()

char * ft_itoa ( int n )

Converts an integer to a string.

Note: Caller owns the returned string and must free it.

Parameters

n	Integer to convert.

Returns: Newly allocated string (owned), or NULL on failure.

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◆ ft_ltoa()

char * ft_ltoa ( long n )

Converts a long integer to a string.

Note: Caller owns the returned string and must free it.

Parameters

n	Long integer to convert.

Returns: Newly allocated string (owned), or NULL on failure.

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◆ ft_ultoa_base()

char * ft_ultoa_base	(	unsigned long	n,
		const char *	base )

Converts an unsigned long to a string in a given base.

Note: Caller owns the returned string and must free it.

Parameters

n	Number to convert.
base	String representing the base characters (borrowed, >= 2 chars).

Returns: Newly allocated string (owned), or NULL on failure.

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◆ ft_utoa()

char * ft_utoa ( unsigned int n )

Converts an unsigned integer to a string.

Note: Caller owns the returned string and must free it.

Parameters

n	Unsigned integer to convert.

Returns: Newly allocated string (owned), or NULL on failure.

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◆ parse_int()

bool parse_int	(	char *	s,
		int *	out )

Parses a string to an integer with overflow detection.

Accepts an optional leading '+' or '-' sign followed by digits. Returns false if the string is empty, contains non-digit characters, or the value would overflow an int.

Parameters

s	String to parse (borrowed).
out	Pointer to store the parsed integer (modified on success).

Returns: true on success, false if parsing failed or value out of range.