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06.23.2008 at 12:55AM PDT, ID: 23506820
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9.5

Malloc fails in C using a void int type? (Easy question apparently)

Asked by sprockston in C Programming Language

Tags:

Why is the following printed when executing the below code:

      int *data;
                     int size = 100;
      printf("Data size: %d\n",sizeof(data));      
      if ( (data = (int *) malloc(sizeof(int) * size)) == 0) {
            printf("Memory request failed.\n");
            exit(1);
      }
      printf("Data size: %d\n",sizeof(data));

Output:
Data size: 4
Data size: 4

Shouldn't it be...
Data size: 4
Data size: 400

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Keywords: Malloc fails in C using a void int type? …
Title
1 malloc, sizeof,
2 malloc
3 malloc
4 MALLOC
5 malloc
6 Malloc and realloc
 
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[+][-]06.23.2008 at 12:58AM PDT, ID: 21844230

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About this solution

Zone: C Programming Language
Tags: C
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Solution Provided By: Infinity08
Participating Experts: 3
Solution Grade: A
 
 
[+][-]06.23.2008 at 01:00AM PDT, ID: 21844239

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[+][-]06.23.2008 at 01:00AM PDT, ID: 21844240

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[+][-]06.23.2008 at 01:01AM PDT, ID: 21844244

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[+][-]06.23.2008 at 01:02AM PDT, ID: 21844252

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[+][-]06.23.2008 at 01:04AM PDT, ID: 21844260

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[+][-]06.23.2008 at 01:06AM PDT, ID: 21844273

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[+][-]06.23.2008 at 01:07AM PDT, ID: 21844284

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[+][-]06.23.2008 at 01:09AM PDT, ID: 21844295

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