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bgColor#ccccff
if (number > SIZE_MAX/sizeof(int)) {
   /* handle overflow */
  }
x = (int *)malloc(number * sizeof(int));
if (x == NULL) {
  /* Handle Allocation Error */
}
/* ... */
if (error_condition == 1) {
  /* Handle Error Condition*/
}
/* ... */
free(x);
x = NULL; 

Wiki Markup
Note that this solution checks for numeric overflow \[[INT32-C. Ensure that operations on signed integers do not result in overflow]\].

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