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error: called object is not a function

error: called object is not a function

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lwlewis	16 May, 2008 - 11:14 PM Post #1
New D.I.C Head Joined: 15 Feb, 2008 Posts: 5	I am trying to write a C program that will first fill an array with upto 20 integers and then finds both the subscript of the largest item and the value of the largest item. I am getting a couple of errors that I do not quit understand. I am using netbeans and cygwin as my compiler. Here is the code I have so far. CODE #include <stdio.h> #include <math.h> #define item 20 int main(void) { int arr[item]; int i; int cur_large; int large_sub; printf ("Enter %d numbers separated by blanks or <return>s\n", item); for (i = 0; i < item; ++1) scanf("%d", arr[i]); cur_large = arr[0]; for (i = 0; i < arr[item]; ++i) if (arr[i] > cur_large) cur_large = arr(i); return(cur_large); large_sub = 0; for (i = 0; i < arr[item]; ++i) if (arr[i] < arr[large_sub]) large_sub = i; return(large_sub); return(0); } Here is what the debugger tells me CODE Running "C:\cygwin\bin\make.exe -f Makefile CONF=Debug" in E:\Course Technology\CS 263\Assignment_4_1 /usr/bin/make -f nbproject/Makefile-Debug.mk SUBPROJECTS= .build-conf make[1]: Entering directory `/cygdrive/e/Course Technology/CS 263/Assignment_4_1' mkdir -p build/Debug/Cygwin-Windows gcc.exe -c -g -o build/Debug/Cygwin-Windows/Arr.o Arr.c Arr.c: In function `main': Arr.c:16: error: invalid lvalue in increment Arr.c:22: error: called object is not a function make[1]: * [build/Debug/Cygwin-Windows/Arr.o] Error 1 make[1]: Leaving directory `/cygdrive/e/Course Technology/CS 263/Assignment_4_1' make: * [.build-impl] Error 2 Build failed. Exit value 2. any help or advice would be appreciated.
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skaoth	RE: Error: Called Object Is Not A Function 16 May, 2008 - 11:20 PM Post #2
D.I.C Regular Joined: 7 Nov, 2007 Posts: 343 Thanked: 10 times Dream Kudos: 100 My Contributions	A quick glance points to this line cur_large = arr(i); maybe it should be cur_large = arr[i]??
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skater_00

RE: Error: Called Object Is Not A Function
17 May, 2008 - 02:03 PM

Post #3

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Joined: 30 Apr, 2008
Posts: 173

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Code edited and compiles. (This is C++ now though, no big deal.) However, the program still crashes as soon as you enter the first number. Still figuring out...

cpp


#include <cstdio>
#include <cmath>
#include <iostream>

using namespace std;

#define item 20

int main()
{
   int arr[item], i, cur_large, large_sub;

   cout << "Enter " << item << " numbers separated by blanks or return/s: " << endl << endl;
  
   for (i = 0; i < item; ++i) // *** Your increment was "++1", should be "++i". ***
       cin >> arr[item];
  
	cur_large = arr[0];

    for (i = 0; i < arr[item]; ++i)
        if (arr[i] > cur_large)
            cur_large = arr[i]; // *** Your array index was between brackets, not []'s. ***

	return cur_large;

	large_sub = 0;
    
    for (i = 0; i < arr[item]; ++i)
        if (arr[i] < arr[large_sub])
            large_sub = i;

	return large_sub;

	return 0;
}

This post has been edited by skater_00: 17 May, 2008 - 02:26 PM

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gabehabe	RE: Error: Called Object Is Not A Function 18 May, 2008 - 06:47 AM Post #4
Donkey DIC Joined: 6 Feb, 2008 Posts: 5,539 Thanked: 98 times Dream Kudos: 2650 Expert In: ruling the world. My Contributions	Your problem is this line: cin >> arr[item]; You're trying to input arr[20] 20 times, instead of using your index i It should look like this: cin >> arr[i]; Hope this helps
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