polink error ??

This is a discussion on polink error ?? within the C Programming forums, part of the General Programming Boards category; here's the code Code: #include<stdio.h> #define basic_cost 5.00 #define cost_1000_liter 1.10 #define fine 2.00 float calc_usage_cost(int , int ); float ...

  1. #1
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    Dec 2012
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    polink error ??

    here's the code
    Code:
    #include<stdio.h>
    
    
    #define basic_cost 5.00
    #define cost_1000_liter 1.10
    #define fine 2.00 
    
    
    float calc_usage_cost(int , int );
    float calc_unpaid_cost(float );
    float calc_total_bill( float, float);
    void print_bill(int ,float);
    
    
    int main()
    {
    	int prev_meter , cur_meter , act_num;
    	float unpaid_bill, usage, unpaid, total, collection=0;
    	char choice;
    
    
    	printf("------------------Perlis Water----------------");
    	printf("this program generates monthly water bill");
    	printf("------------------------------------------------------");
    
    
    	do
    	{
    		printf("Enter account number:");
    		scanf("%d", &act_num);
    		printf("enter unpaid bill :");
    		scanf("%f", &unpaid_bill );
    		printf("Enter previous and current meters :");
    		scanf("%d%d", &prev_meter, &cur_meter);
    		
    		usage = calc_usage_cost(prev_meter , cur_meter);
    		unpaid = calc_unpaid_cost(unpaid_bill);
    		total = calc_total_bill( usage , unpaid );
    		print_bill(act_num, total);
    		collection = collection + total;
    
    
    		printf("Do you wish to continue:");
    		scanf("%c", &choice);
    	} while((choice == 'y' ) || (choice == 'Y'));
    
    
    	printf("Perlis water collection : %.2f", collection);
    
    
    	return 0;
    }
    
    
    float calc_usage_cost(int prev, int cur )
    { 
    		float water_usage, usage_cost;
    		water_usage = cur - prev;
    		usage_cost = (water_usage/1000) * cost_1000_liter;
    		return(usage_cost);
    }
    
    
    float calc_unpaid_cost(float unpaid)
    {
    	float unpaid_cost;
    	
    	if (unpaid >0)
    		unpaid_cost = unpaid + fine;
    	else 
    		unpaid_cost = 0;
    	return(unpaid_cost);
    }
    
    
    float cal_total_bill( float usage_cost, float unpaid_cost)
    {
    	float total_bill;
    	total_bill = basic_cost + usage_cost + unpaid_cost;
    	return(total_bill);
    }
    
    
    void print_bill(int act_num ,float total_bill)
    {
    	printf("\n\nYour account number is %d \n", act_num);
    	printf("Your total bill is RM %5.2f\n", total_bill);
    }
    got this error when execute :
    Building function2.obj.
    Building lab.exe.
    POLINK: error: Unresolved external symbol 'calc_total_bill'.
    POLINK: fatal error: 1 unresolved external(s).
    *** Error code: 1 ***
    Done.

    so what's the problem ?

  2. #2
    and the hat of wrongness Salem's Avatar
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    total = calc_total_bill( usage , unpaid );

    float cal_total_bill( float usage_cost, float unpaid_cost)

    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  3. #3
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    Dec 2012
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    ok..
    thank you

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