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Update a1/program.c

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This commit is contained in:
Yurii Yakovenko 2024-10-25 19:41:46 +00:00
parent a06a9d5f09
commit 19067c47b9
1 changed files with 5 additions and 78 deletions
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79
a1/program.c
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@ -11,11 +11,6 @@ struct Stack
int size; int size;
}; };
void push_stack(struct Stack* stack, float value);
char pop_stack(struct Stack* stack);
int count_stack(struct Stack* stack);
void push_stack(struct Stack* stack, char value) void push_stack(struct Stack* stack, char value)
{ {
assert(stack->size < STACK_SIZE); assert(stack->size < STACK_SIZE);
@ -38,7 +33,7 @@ void print_stack(struct Stack* stack)
{ {
for (int i=0; i<stack->size; i++) for (int i=0; i<stack->size; i++)
{ {
printf("%.2f ", stack->values[i]); printf("%c ", stack->values[i]);
} }
printf("\n"); printf("\n");
} }
@ -86,77 +81,9 @@ int main()
} }
//Crossed bracket > in 12, expected )
int err=0;
char buf[505];
do
{
char* p=fgets(buf, 299, stdin);
if(p)
{
char c=buf[0];
float op1, op2, rez;
if(c=='+'||c=='-'||c=='/'||c=='*')
{
if(count_stack(&mystack)<2)
{
printf("not enough operands\n");
err=3;
break;
}
op2=pop_stack(&mystack);
op1=pop_stack(&mystack);
switch(c)
{
case '+': rez=op1+op2; break;
case '-': rez=op1-op2; break;
case '/':
if(c=='/' && op2==0)
{
err=1;
printf("division by zero\n");
}
else
rez=op1/op2;
break;
case '*': rez=op1*op2; break;
}
}
else
{
if(isdigit(c))
{
rez=atof(buf);
}
else
{
err=1;
printf("bad input\n");
}
}
if(!err)
{
if(count_stack(&mystack)==STACK_SIZE)
{
printf("full stack\n");
err=4;
break;
}
push_stack(&mystack, rez);
print_stack(&mystack);
}
}
else break;
}while(1);
if(!err)
printf("no input\n");
return 0; return 0;
} }