Library Functions

String and memory functions. More...

Data Structures
struct	uidiv_result
	Division result. More...

Macros
#define	DEBUG_LOGGING   0
	Disable debug logging.
#define	VERBOSE_LOGGING   0
	Disable verbose logging.
#define	MAX_LOG_LENGTH   0x100
	Any log entry larger than this will cause a buffer overflow!
#define	IF_DEBUG   if (DEBUG_LOGGING)
	Place before calling LOG to only show when debugging.
#define	IF_VERBOSE   if (VERBOSE_LOGGING)
	Place before calling LOG to only show when verbose output is enabled.
#define	LOG(args...)   vita_logf (__FILE__, __LINE__, args)
	Write a log entry.

Typedefs
typedef struct uidiv_result	uidiv_result_t
	Division result.

stdarg.h functions
See stdarg.h documentation for details.
typedef __builtin_va_list	va_list
#define	va_start(ap, v)   __builtin_va_start(ap, v)
#define	va_arg(ap, type)   __builtin_va_arg(ap, type)
#define	va_end(ap)   __builtin_va_end(ap)

string.h functions
See string.h documention for details.
void *	memcpy (void *destination, const void *source, u32_t num)
char *	strcpy (char *destination, const char *source)
int	memcmp (const void *ptr1, const void *ptr2, u32_t num)
int	strcmp (const char *str1, const char *str2)
int	strncmp (const char *str1, const char *str2, u32_t num)
void *	memset (void *ptr, int value, u32_t num)
u32_t	strlen (const char *str)

stdio.h functions
See stdio.h documention for details.
int	vsprintf (char *str, const char *fmt, va_list ap)
	Simple vsprintf.
int	sprintf (char *str, const char *format,...)
	Simple sprintf.

Additional functions
char *	memstr (char *haystack, int h_length, char *needle, int n_length)
	Search for a string in memory.
uidiv_result_t	uidiv (u32_t num, u32_t dem)
	Unsigned integer division.
void	vita_init_log ()
	Sets the logging function.
void	vita_logf (char *file, int line,...)
	Writes a log entry.

Detailed Description

String and memory functions.

Typedef Documentation

typedef struct uidiv_result uidiv_result_t

Division result.

See Also

uidiv

Function Documentation

char* memstr	(	char *	haystack,
		int	h_length,
		char *	needle,
		int	n_length
	)

Search for a string in memory.

Uses the Boyer-Moore algorithm to search.

Returns

First occurrence of needle in haystack

Parameters

haystack	Where to search
h_length	Length of haystack
needle	String to find
n_length	Length of needle

int sprintf	(	char *	str,
		const char *	format,
			...
	)

Simple sprintf.

Only supports c, s, u, x, X with optional zero padding. Always returns zero.

uidiv_result_t uidiv	(	u32_t	num,
		u32_t	dem
	)

Unsigned integer division.

ARM does not have native division support

Returns

Result of operation or zero if dividing by zero.

Parameters

num	Numerator
dem	Denominator

void vita_logf	(	char *	file,
		int	line,
			...
	)

Writes a log entry.

Writes log to all places set in options including log file, on screen, and console.

Parameters

file	Source file of code writing to log
line	Line number of code writing to log

int vsprintf	(	char *	str,
		const char *	fmt,
		va_list	ap
	)

Simple vsprintf.

Only supports c, s, u, x, X with optional zero padding. Always returns zero.