syntax error

This is a discussion on syntax error within the C Programming forums, part of the General Programming Boards category; Hi, sorry it might be stupid to post it but I need some help to track this syntax error, as ...

  1. #1
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    syntax error

    Hi, sorry it might be stupid to post it but I need some help to track this syntax error, as I can't see it, I think there no error but compiler keeps telling :
    Code:
    .c(27) : error C2143: syntax error : missing ')' before ';'
    .c(27) : error C2059: syntax error : ')'
    .c(70) : error C2143: syntax error : missing ')' before ';'
    .c(70) : error C2059: syntax error : ')'
    and this two functions where I'm having those errors

    First:
    Code:
    void get_weight(void)
    {
    		for(i=0;i<num_packages;++i)
    		{
    			printf("Enter Weight for package#%i:  \n", i);
    			scanf_s("%i", &weight);
    
    			t_weight+=weight;
    			
    			if(t_weight>max_weight)
    				printf("Overload, packages can't be picked up");
    				--num_packages;
    		}
    }

    Second:

    Code:
    void print_reciept(void )
    {
    	printf("\tShipping Receipt\n");
    	printf("\t\tDate: %i/%i/%i\n",month,date,year); 
    	printf("Customer#:          %i\n",customer);
    	printf("No. of Packages:    %i\n",num_packages);
    	printf("\nDeliver Distance: %i\n",distance);
    	printf("\nTotal Weight:     %i\n",weight);
    	printf("\nShipping Charge:  %i\n",charge);
    }
    Thank you.
    Last edited by nynicue; 03-01-2009 at 03:44 PM.

  2. #2
    and the hat of wrongness Salem's Avatar
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    And what?
    You want us to guess which are lines 27 and 70 ?

    Since the first one is line 27, post the first 30 lines
    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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    Sorry you right I should be more specific, Ok here is a first 33 lines , I marked theline where compiler shows an error

    Code:
    #include <stdio.h>
    	
    #define max_weight 300;
    #define charge 20;
    #define year 2009;
    int i, num_packages, t_num_packages=0;
    int weight, t_weight=0;
    int distance;
    int customer=1;
    int month, date;
    float t_charge;
    
    void get_num_of_packages(void)
    {
    		printf("How many packages: ");
    		scanf_s("%i", &num_packages);
    		t_num_packages+=num_packages;
    }
    
    void get_weight(void)
    {
    		for(i=0;i<num_packages;++i)
    		{
    			printf("Enter Weight for package#%i:  \n", i);
    			scanf_s("%i", &weight);
    
    			t_weight+=weight;
    			
    			if(t_weight>max_weight)	// syntax error			
                            printf("Overload, package can't be picked up");
    				--num_packages;
    		}
    }
    Last edited by nynicue; 03-02-2009 at 05:38 AM.

  4. #4
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    Code:
    #define max_weight 300;
    means that
    Code:
    			if(t_weight>max_weight)	// syntax error
    looks like this after preprocessing:

    Code:
    			if(t_weight>300;)	// syntax error
    Any chance you can spot the error?

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  5. #5
    spurious conceit MK27's Avatar
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    I don't see your syntax error but be aware that this:

    Quote Originally Posted by nynicue View Post
    Code:
    if(t_weight>max_weight)	
    printf("Overload, package can't be picked up");
    	--num_packages;
    means this
    Code:
    if(t_weight>max_weight)	  { printf("Overload, package can't be picked up"); }
    --num_packages;
    and not this:
    Code:
    if(t_weight>max_weight)	  { 
              printf("Overload, package can't be picked up"); 
              --num_packages;  
    }
    Which means that num_packages will be decremented no matter what -- even if t_weight<=max_weight.

    ps. wow matsp, I won't have guessed that -- but I've never used a semi-colon at the end of a #define
    Last edited by MK27; 03-02-2009 at 06:06 AM.
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    cpwiki -- our wiki on sourceforge

  6. #6
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    Thank you all, matsp I wouldn't guess myself that this error because of wrong defined veriable, MK27 thank you for explanation about my if statement, it helped.

  7. #7
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    Quote Originally Posted by nynicue View Post
    Thank you all, matsp I wouldn't guess myself that this error because of wrong defined veriable, MK27 thank you for explanation about my if statement, it helped.
    And what's worse is that the compiler can't tell you either. The way the preprocessing and the compilation works in a C compiler makes the compiler completely unaware of the fact that what it compiles looked like before the #define.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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