framework/tests/struct.c at master · dumin199101/framework · GitHub

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//gcc -g -o struct struct.c

#include <stdlib.h>

#include <stdio.h>

#include <stdint.h>

#include <string.h>

#pragma pack(4)

int main(int argc, char **argv)

{

if (argc < 2)

{

printf("./struct [filename]\n");

}

int n_fread;

if (argc == 2)

{

n_fread = 1;

}

else

{

n_fread = atoi(argv[2]);

}

struct

{

int32_t id;

char data[40];

double price;

float price2;

int64_t count;

} data;

int n, i;

FILE *fp;

if (fp=fopen(argv[1],"rb"))

{

for(i =0; i<n_fread; i++)

{

n = fread(&data, sizeof(data), 1, fp);

if (n < 0)

{

break;

}

printf("#%d\tid=%d\tdata=%s\tprice=%.2f\tprirce2=%.2f\tcount=%ld\n",

i, data.id, data.data, data.price, data.price2, data.count);

}

return 0;

}

framework/tests/struct.c at master · dumin199101/framework · GitHub

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