150 lines
3.5 KiB
C
150 lines
3.5 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#define SIZE 30
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//~ #pragma pack(push, 1)
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struct sensor
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{
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uint16_t year;
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uint8_t month;
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uint8_t day;
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int8_t t;
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};
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//~ #pragma pack(pop)
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void cgangeIJ(struct sensor* info,int i, int j){
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struct sensor temp;
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temp=info[i];
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info[i]=info[j];
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info[j]=temp;
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}
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//упорядочивающую его по неубыванию температуры
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void SortByT(struct sensor* info,int n){
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for(int i=0; i<n; ++i)
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for(int j=i; j<n; ++j)
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if(info[i].t>=info[j].t)
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cgangeIJ(info,i,j);
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}
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unsigned int DateToInt(struct sensor* info){
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return info->year << 16 | info->month << 8 | info->day;
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}
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//упорядочивающую его по дате
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void SortByDate(struct sensor* info,int n){
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for(int i=0; i<n; ++i)
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for(int j=i; j<n; ++j)
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if(DateToInt(info+i)>= DateToInt(info+j))
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cgangeIJ(info,i,j);
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}
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void AddRecord(struct sensor info[],int number,uint16_t year,uint8_t month,uint8_t day,int8_t t){
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info[number].year = year;
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info[number].month = month;
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info[number].day = day;
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info[number].t = t;
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}
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int AddInfo(struct sensor info[])
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{
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int counter=0;
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AddRecord(info,counter++,2021,9,16,9);
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AddRecord(info,counter++,2022,9,2,-9);
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AddRecord(info,counter++,2021,1,7,8);
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AddRecord(info,counter++,2021,9,5,1);
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return counter;
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}
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void print(struct sensor* info,int number){
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printf("===================================\n");
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for(int i=0;i<number;i++)
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printf("%04d-%02d-%02d t=%3d\n",
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info[i].year,
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info[i].month,
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info[i].day,
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info[i].t);
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}
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void load_bin(struct sensor* info,int number)
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{
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//Проверка на открытие файла
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FILE* f = fopen("sensor.bin","rb");
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//Проверка на считанные данные
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//~ int result =
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fread(info,number*sizeof(struct sensor),1,f);
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fclose(f);
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}
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void save_bin(struct sensor* info,int number)
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{
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//Проверка на открытие файла
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FILE* f = fopen("sensor.bin","wb");
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//Проверка на считанные данные
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//~ int result =
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fwrite(info,number*sizeof(struct sensor),1,f);
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fclose(f);
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}
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struct data
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{
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uint32_t number;
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struct sensor info[SIZE];
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};
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void print_data(struct data* d){
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printf("===================================\n");
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for(int i=0;i<d->number;i++)
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printf("%04d-%02d-%02d t=%3d\n",
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d->info[i].year,
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d->info[i].month,
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d->info[i].day,
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d->info[i].t);
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}
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union sensor_serdes
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{
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struct data _data;
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uint8_t bytes[sizeof(struct data)];
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};
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void load_bin_des(union sensor_serdes * d)
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{
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FILE* f = fopen("sensor.bin","rb");
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fread(d->bytes,sizeof(d->_data.number),1,f);
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fread(d->bytes+sizeof(d->_data.number),d->_data.number*sizeof(struct sensor),1,f);
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fclose(f);
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}
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void save_bin_ser(union sensor_serdes* d)
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{
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FILE* f = fopen("sensor.bin","wb");
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fwrite(d->bytes,sizeof(d->_data.number),1,f);
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fwrite(d->bytes+sizeof(d->_data.number),d->_data.number*sizeof(struct sensor),1,f);
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fclose(f);
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}
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int main(void)
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{
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struct data d;
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union sensor_serdes* ds = (union sensor_serdes*)&d;
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d.number=AddInfo(d.info);
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print(d.info,d.number);
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save_bin_ser(ds);
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printf("\nSort by t\n");
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SortByT(d.info,d.number);
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print(d.info,d.number);
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printf("\nSort by date\n");
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SortByDate(d.info,d.number);
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print(d.info,d.number);
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load_bin_des(ds);
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print(d.info,d.number);
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return 0;
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}
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