subsurface/core/subsurface-time.h
Berthold Stoeger 6b46e8ae57 cleanup: const-ify utc_mktime()
To make it clear that the struct tm is only used as an input
parameter.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-12-29 08:34:09 -08:00

27 lines
655 B
C

// SPDX-License-Identifier: GPL-2.0
#ifndef TIME_H
#define TIME_H
#include "units.h"
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif
extern timestamp_t utc_mktime(const struct tm *tm);
extern void utc_mkdate(timestamp_t, struct tm *tm);
extern int utc_year(timestamp_t timestamp);
extern int utc_weekday(timestamp_t timestamp);
/* parse and format date times of the form YYYY-MM-DD hh:mm:ss */
extern timestamp_t parse_datetime(const char *s); /* returns 0 on error */
extern char *format_datetime(timestamp_t timestamp); /* ownership of string passed to caller */
extern const char *monthname(int mon);
#ifdef __cplusplus
}
#endif
#endif