longlongint的取值范围,long值范围

longlongint的取值范围,long值范围

//NSInteger的取值范围在64bitslong==longlong#elsetypedefintNSInteger;typedefunsignedintNSUInteger;//NSInteger的取值范围在32bitsint==longshortint:2bytesint:4wordsSectionunsignedint:4bytesfloat:4bytesdouble:8byteslong:4byteslonglong:8bytesunsignedlong:8bytes_int6

longin有一个更宽的取值范围，它的取值范围介于-2,147,483,648和2,147,483,647之间。 在许多编程语言中，longint也映射到相同的值范围，因此它们也是通用的。 longintisatypethathas,long,andlonglongwithavaluerangeofunsignedint0～4294967295int-2147483648～2147483647unsignedlong0～4294967295long-2147483648～2147483647longlong最大值：92

(-__-)b shortint-128～127int2bytestostoreunsignedint0～4294967295int2147483648～2147483647long4bytestostoreunsignedlong0～4294967295long21474836各种类型的长度和取值范围short类型至少占用2个字符段；long类型至少占用4bytes；而longlong类型至少占用8bytes。 sizeof(short)≤sizeof(int)≤sizeof(long)

?▽? 07typedefunsignedlonnsuinteger;//nsinteger的取值范围under64bitislong==longlong08#else09typedefintnsinteger;10typedefunsignedintnsuinteger;//32bitunsignedint0～4294967295int-2147483648～2147483647unsignedlong0～4294967295long-2147483648～2147483647longlong的最大值：9223372036854775807

int-2147483648～2147483647unsignedlong0～4294967295long-2147483648～2147483647longlong的最大值：9223372036854775807longlong的最小值long-2147483648～2147483647unsignedlong0～4294967295long-2147483648～2147483647longlongThemaximumvalueoflonglong:9223372036854775807longlongMinimumvaluefor:922337