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Merge pull request #224 from avsej/master

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Fix typo about how pointers are declared
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Adam Bard 2013-08-14 13:29:52 -07:00
commit bc614fda28
1 changed files with 5 additions and 2 deletions
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@ -230,10 +230,13 @@ printf("%p\n", &x); // Use & to retrieve the address of a variable
// (%p formats a pointer) // (%p formats a pointer)
// => Prints some address in memory; // => Prints some address in memory;
// Pointer types end with * in their declaration
int* px; // px is a pointer to an int // Pointers start with * in their declaration
int *px, not_a_pointer; // px is a pointer to an int
px = &x; // Stores the address of x in px px = &x; // Stores the address of x in px
printf("%p\n", px); // => Prints some address in memory printf("%p\n", px); // => Prints some address in memory
printf("%d, %d\n", (int)sizeof(px), (int)sizeof(not_a_pointer));
// => Prints "8, 4" on 64-bit system
// To retreive the value at the address a pointer is pointing to, // To retreive the value at the address a pointer is pointing to,
// put * in front to de-reference it. // put * in front to de-reference it.