iskm/learnxinyminutes-docs
1
0
Fork 0
mirror of https://github.com/adambard/learnxinyminutes-docs.git synced 2024-12-23 17:41:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #224 from avsej/master

Browse Source 
Fix typo about how pointers are declared
This commit is contained in:
Adam Bard 2013-08-14 13:29:52 -07:00
commit bc614fda28
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
c.html.markdown
View File

@ -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.