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author | Adam Bard <github@adambard.com> | 2013-08-14 13:29:52 -0700 |
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committer | Adam Bard <github@adambard.com> | 2013-08-14 13:29:52 -0700 |
commit | bc614fda28179f0b7eb98a9283cfc6721765b6cf (patch) | |
tree | 7004d9ddd2834b950ea8f234bc13a64d742ed8d0 /c.html.markdown | |
parent | 991e7b0045615427f5ccb12c3c85f262a2ac54e8 (diff) | |
parent | 162b5bb60dea93dac591005a73956be663313761 (diff) |
Merge pull request #224 from avsej/master
Fix typo about how pointers are declared
Diffstat (limited to 'c.html.markdown')
-rw-r--r-- | c.html.markdown | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/c.html.markdown b/c.html.markdown index d243b19d..2b50efa0 100644 --- a/c.html.markdown +++ b/c.html.markdown @@ -230,10 +230,13 @@ printf("%p\n", &x); // Use & to retrieve the address of a variable // (%p formats a pointer) // => 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 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, // put * in front to de-reference it. |