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Alex Rivera
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I've seen several macros for array length floating around: From this question : #define length(array) (sizeof(array)/sizeof(*(array))) #define ARRAY_LENGTH(array) (sizeof((array))/sizeof((array)[0])) #define SIZE(array, type) (sizeof(array) / (sizeof(type)) And Visual Studio's _countof : #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0])) What I'd like to know is: What's the difference between those using array[0] and *array ? Why should either be preferred? Do they differ in C++?
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