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- STORAGE TYPES
-
- A C language crib sheet from Jeff Galbraith
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- int x;
- - x is an int.
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- int *x;
- - x is a pointer to an int.
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- int **x;
- - x is a pointer to a pointer to an int.
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- const int x;
- - x is a const int (constant integer).
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- const int *x;
- - x is a pointer to a const int. The value of x may change, but
- the integer that it points to not be changed. In other words,
- x cannot be used to alter the value to which it points.
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- int *const x;
- - x is a constant pointer to an int. The value may not change,
- but the integer that it points to may change. In other words,
- x will always point at the same location, but the contents may
- vary.
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- const int *const x;
- - x is a constant pointer to a constant integer. The value of x
- may not change, and the integer that it points to may not
- change. In other words, x will always point at the same
- location, which cannot be modified via x.
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- int x[];
- - x is an array of int.
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- int x[99];
- - x is an array of 99 int's.
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- int *x[];
- - x is an array of pointers to int.
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- int (*x)[];
- - x is a pointer to an array of int.
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- int *(*x)[];
- - x is a pointer to an array of pointers to int.
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- int F();
- - F is a function returning int.
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- int *F();
- - F is a function returning a pointer to int.
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- int (*x)();
- - x is a pointer to a function returning int.
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- int (*x[99])();
- - x is an array of 99 pointers to functions returning int.
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- int (*F())();
- - F is a function returning a pointer to a function returning int.
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- int *(*F())();
- - F is a function returning a pointer to a function returning a
- pointer to an int.
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- int (*F())[];
- - F is a function returning a pointer to an array of int.
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- int (*(*F())[])();
- - F is a function returning a pointer to an array of pointers to
- functions returning int.
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- int *(*(*F())[])();
- - F is a function returning a pointer to an array of pointers to
- functions returning a pointer to int.
-