http://blog.csdn.net/refiner/archive/2006/09/13/1216096.aspx
數組
size_t是一種無符號的整型數,它的取值沒有負數,在數組中也用不到負數,而它的取值範圍是整型數的雙倍。sizeof操做符的結果類型是size_t,它在頭文件中typedef爲unsigned int類型。該類型保證能容納實現所創建的最大對象的字節大小。spa
Windows: .net
size_t unsigned integer, Result of sizeof operator. STDDEF.H and other include files對象
string.h和stddef.h中以下定義blog
OpenSolaris:get
xref: /onnv/onnv-gate/usr/src/head/iso/stdlib_iso.h 中定義以下:string