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c/c++类型和字节大小整理

2015-07-23 18:12 148 查看
类型字节(Byte)位(Bit)数值范围最小值最大值格式化字符
(signed) char18 Bit-2^4 ~ 2^4-1-128127%c,%d,%x
unsigned char18 Bit0 ~ 2^8-10255%c,%d,%x
(signed) short216 Bit-2^15 ~ 2^15-1-32,76832,767%d,%x
unsigned short216 Bit0-2^16-1065535%d,%x
wchar_t216 Bit0-2^16-1065535%d,%x
(signed) int432 Bit-2^31 ~ 2^31-1-2,147,483,6482,147,483,647%d,%x
unsigned int432 Bit0-2^16-104,294,967,295%d,%x
(signed) long long864 Bit-2^63 ~ 2^63-1-9,223,372,036,854,775,8089,223,372,036,854,775,807%I64d,%x
unsigned long long864 Bit0 ~ 2^64-1018,446,744,073,709,551,615%I64d,%x
float432 Bit-3.4E-38~3.4E+38-3.4E-383.4E+38%f,%e
double864 Bit1.7E-308~1.7E+3081.7E-3081.7E+308%f,%e
long 32位编译器是32位 4字节.在64位编译器是64位 8字节.
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