GRASS 8 Programmer's Manual
8.5.0dev(2025)-edc87a4920
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#include <grass/datetime.h>
Go to the source code of this file.
Functions | |
int | datetime_is_positive (const DateTime *dt) |
Returns: 1 if the Datetime is positive 0 otherwise. More... | |
int | datetime_is_negative (const DateTime *dt) |
Returns: 1 if the DateTime is negative 0 otherwise. More... | |
void | datetime_set_positive (DateTime *dt) |
Makes the DateTime positive. (A.D. for ABSOLUTE DateTimes) More... | |
void | datetime_set_negative (DateTime *dt) |
Makes the DateTime negative. (B.C. for ABSOLUTE DateTimes) More... | |
void | datetime_invert_sign (DateTime *dt) |
void datetime_invert_sign | ( | DateTime * | dt | ) |
dt |
Definition at line 71 of file sign.c.
References DateTime::positive.
Referenced by datetime_change_timezone().
int datetime_is_negative | ( | const DateTime * | dt | ) |
Returns: 1 if the DateTime is negative 0 otherwise.
dt |
Definition at line 34 of file sign.c.
References DateTime::positive.
int datetime_is_positive | ( | const DateTime * | dt | ) |
Returns: 1 if the Datetime is positive 0 otherwise.
dt |
Definition at line 19 of file sign.c.
References DateTime::positive.
void datetime_set_negative | ( | DateTime * | dt | ) |
Makes the DateTime negative. (B.C. for ABSOLUTE DateTimes)
dt |
Definition at line 60 of file sign.c.
References DateTime::positive.
void datetime_set_positive | ( | DateTime * | dt | ) |
Makes the DateTime positive. (A.D. for ABSOLUTE DateTimes)
dt |
Definition at line 47 of file sign.c.
References DateTime::positive.