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main.c
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main.c
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#include "large_num.h"
int main(int argc, char *argv[])
{
struct largeNum arg1, arg2, *ans, *remain;
int end;
char op;
initMulTable();
while(1)
{
end = readInNum(&arg1);
if(end == ERROR_OCCUR)
{
printf("error input!\n");
jumpLine();
jumpLine();
continue;
}
if(end == 0) break;
end = readInNum(&arg2);
if(end == ERROR_OCCUR)
{
printf("error input!\n");
jumpLine();
free(arg1.num);
continue;
}
if(end == 0) break;
op = getchar();
switch(op)
{
case '+':
ans = add(&arg1, &arg2);
putsNum(ans);
break;
case '-':
ans = sub(&arg1, &arg2);
putsNum(ans);
break;
case '*':
ans = mul(&arg1, &arg2);
putsNum(ans);
break;
case '/':
ans = divL(&arg1, &arg2, &remain);
print2Num(ans,remain);
if(NULL != remain)
{
if(NULL != remain->num)
free(remain->num);
free(remain);
}
break;
default:
printf("error input!\n");
free(arg1.num);
free(arg2.num);
continue;
}
free(arg1.num);
free(arg2.num);
if(NULL != ans)
{
if(NULL != ans->num)
free(ans->num);
free(ans);
}
}
return 0;
}