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Miscellaneous Functions
[C Runtime Library.]

Complementary runtime support. More...

Defines
#define	EEPROM_READ(addr, dst)
	Read multibyte types from the EEPROM.
#define	EEPROM_WRITE(addr, src)
	Write multibyte types to the EEPROM.
Typedefs
typedef unsigned char	ureg_t
	Unsigned register type.
typedef signed char	reg_t
	Unsigned register type.
typedef unsigned short	uptr_t
	Unsigned pointer value type.
Functions
char *	strsep_rs (char **pp_str, const char *p_delim, char *p_term)
	Thread safe variant of strsep.
char *	strsep_r (char **pp_str, const char *p_delim)
	Thread safe version of strsep.

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Detailed Description

Complementary runtime support.

The functions strtok_r(), strsep_r() and strsep_rs() are intended as a replacement for the strtok() function. While the strtok() function should be preferred for portability reasons (it conforms to ISO/IEC 9899:1990 ("ISO C89")) it may not be able to be used in a multi-threaded environment (that is it is not reentrant). Functions strsep_r() and strsep_rs() can handle empty fields, (i.e. detect fields delimited by two adjacent delimiter characters). Function strsep() first appeared in 4.4BSD.

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Define Documentation

#define EEPROM_READ (  addr, dst    )

Read multibyte types from the EEPROM.

#define EEPROM_WRITE (  addr, src    )

Write multibyte types to the EEPROM.

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Typedef Documentation

typedef signed char reg_t

Unsigned register type. Similar to ureg_t, but for signed values from -128 to +127.

typedef unsigned short uptr_t

Unsigned pointer value type. The size of this type is at least the size of a memory pointer. For CPUs with 16 address bits this will be an unsigned short.

typedef unsigned char ureg_t

Unsigned register type. The size of this type is equal to the size of a register, the hardware datapath or whatever might fit to give optimum performance for values from 0 to 255. Typically 8 bit CPUs will use unsigned characters, 16 bit CPUs will use unsigned shorts etc.

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Function Documentation

char* strsep_r (  char **    pp_str, const char *    p_delim )

Thread safe version of strsep. This function locates, in the string referenced by *str, the first occurrence of any character in the string delim (or the terminating `' character) and replaces it with a `'. The location of the next character after the delimiter character (or NULL, if the end of the string was reached) is stored in *str. The original value of *str is returned. An "empty" field, i.e. one caused by two adjacent delimiter characters, can be detected by comparing the location referenced by the pointer returned in *str to `'. If *str is initially NULL, strsep_r() returns NULL. If delim is NULL or the empty string, strsep_r() returns *str.

char* strsep_rs (  char **    pp_str, const char *    p_delim, char *    p_sep )

Thread safe variant of strsep. This function is identical in operation to strsep_r(), except it returns the deliminating character.

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