incr2.c File Reference

#include <grass/datetime.h>

Include dependency graph for incr2.c:

Go to the source code of this file.

Functions
int	datetime_is_valid_increment (const DateTime *src, const DateTime *incr)
	Returns: datetime_check_increment(src, incr) == 0. More...
int	datetime_check_increment (const DateTime *src, const DateTime *incr)
	This checks if the type of 'incr' is valid for incrementing/decrementing 'src'. The type (mode/from/to) of the 'src' can be anything. The incr.mode must be RELATIVE A timezone in 'src' is allowed - it's presence is ignored. To aid in setting the 'incr' type, see datetime_get_increment_type(). Returns: More...

Function Documentation

datetime_check_increment()

int datetime_check_increment	(	const DateTime *	src,
		const DateTime *	incr
	)

This checks if the type of 'incr' is valid for incrementing/decrementing 'src'. The type (mode/from/to) of the 'src' can be anything. The incr.mode must be RELATIVE A timezone in 'src' is allowed - it's presence is ignored. To aid in setting the 'incr' type, see datetime_get_increment_type(). Returns:

• 0 valid increment
• 1 src is not a legal DateTime, error code/msg are those set by datetime_is_valid_type()
• 2 incr is not a legal DateTime, error code/msg are those set by datetime_is_valid_type()
• -1 incr.mode not relative
• -2 incr more precise that src
• -3 illegal incr, must be YEAR-MONTH
• -4 illegal incr, must be DAY-SECOND

Parameters

src
incr

Returns

int

Definition at line 60 of file incr2.c.

datetime_is_valid_increment()

int datetime_is_valid_increment	(	const DateTime *	src,
		const DateTime *	incr
	)

Returns: datetime_check_increment(src, incr) == 0.

Parameters

src
incr

Returns

int

Definition at line 21 of file incr2.c.