有兩個宏可以獲取獲取編譯的時間

__DATA__：編譯的日期

__TIME__：編譯的時間

可以通過打印來看編譯的日期和時間：

printf("data: %s time: %s",__DATA__,__TIME__);

有時需要將編譯的時間放入版本號中，方法如下：

#include "stdlib.h"

#define BUILD_YEAR_CH0 (__DATE__[ 7])
#define BUILD_YEAR_CH1 (__DATE__[ 8])
#define BUILD_YEAR_CH2 (__DATE__[ 9])
#define BUILD_YEAR_CH3 (__DATE__[10])


#define BUILD_MONTH_IS_JAN (__DATE__[0] == ‘J‘ && __DATE__[1] == ‘a‘ && __DATE__[2] == ‘n‘)
#define BUILD_MONTH_IS_FEB (__DATE__[0] == ‘F‘)
#define BUILD_MONTH_IS_MAR (__DATE__[0] == ‘M‘ && __DATE__[1] == ‘a‘ && __DATE__[2] == ‘r‘)
#define BUILD_MONTH_IS_APR (__DATE__[0] == ‘A‘ && __DATE__[1] == ‘p‘)
#define BUILD_MONTH_IS_MAY (__DATE__[0] == ‘M‘ && __DATE__[1] == ‘a‘ && __DATE__[2] == ‘y‘)
#define BUILD_MONTH_IS_JUN (__DATE__[0] == ‘J‘ && __DATE__[1] == ‘u‘ && __DATE__[2] == ‘n‘)
#define BUILD_MONTH_IS_JUL (__DATE__[0] == ‘J‘ && __DATE__[1] == ‘u‘ && __DATE__[2] == ‘l‘)
#define BUILD_MONTH_IS_AUG (__DATE__[0] == ‘A‘ && __DATE__[1] == ‘u‘)
#define BUILD_MONTH_IS_SEP (__DATE__[0] == ‘S‘)
#define BUILD_MONTH_IS_OCT (__DATE__[0] == ‘O‘)
#define BUILD_MONTH_IS_NOV (__DATE__[0] == ‘N‘)
#define BUILD_MONTH_IS_DEC (__DATE__[0] == ‘D‘)


#define BUILD_MONTH_CH0 \
((BUILD_MONTH_IS_OCT || BUILD_MONTH_IS_NOV || BUILD_MONTH_IS_DEC) ? ‘1‘ : ‘0‘)

#define BUILD_MONTH_CH1 \
( \
(BUILD_MONTH_IS_JAN) ? ‘1‘ : \
(BUILD_MONTH_IS_FEB) ? ‘2‘ : \
(BUILD_MONTH_IS_MAR) ? ‘3‘ : \
(BUILD_MONTH_IS_APR) ? ‘4‘ : \
(BUILD_MONTH_IS_MAY) ? ‘5‘ : \
(BUILD_MONTH_IS_JUN) ? ‘6‘ : \
(BUILD_MONTH_IS_JUL) ? ‘7‘ : \
(BUILD_MONTH_IS_AUG) ? ‘8‘ : \
(BUILD_MONTH_IS_SEP) ? ‘9‘ : \
(BUILD_MONTH_IS_OCT) ? ‘0‘ : \
(BUILD_MONTH_IS_NOV) ? ‘1‘ : \
(BUILD_MONTH_IS_DEC) ? ‘2‘ : \
/* error default */ ‘?‘ \
)

#define BUILD_DAY_CH0 ((__DATE__[4] >= ‘0‘) ? (__DATE__[4]) : ‘0‘)
#define BUILD_DAY_CH1 (__DATE__[ 5])



#define BUILD_HOUR_CH0 (__TIME__[0])
#define BUILD_HOUR_CH1 (__TIME__[1])

#define BUILD_MIN_CH0 (__TIME__[3])
#define BUILD_MIN_CH1 (__TIME__[4])

#define BUILD_SEC_CH0 (__TIME__[6])
#define BUILD_SEC_CH1 (__TIME__[7])


uint8_t year[5] = {‘\0‘};
uint8_t mon[3] = {‘\0‘};
uint8_t day[3] = {‘\0‘};

uint8_t firmware_year = 0;
uint8_t firmware_mon = 0;
uint8_t firmware_day = 0;

void time_convert(void)
{
year[0] = BUILD_YEAR_CH2;
year[1] = BUILD_YEAR_CH3;

mon[0] = BUILD_MONTH_CH0;
mon[1] = BUILD_MONTH_CH1;

day[0] = BUILD_DAY_CH0;
day[1] = BUILD_DAY_CH1;

//將字符串轉換成整形
firmware_year = atoi(year);
firmware_mon = atoi(mon);
firmware_day = atoi(day);
}

如何獲取程序的編譯時間