在这个例子中,(unsigned short)是一个强制类型转换,它将char值转换为unsigned short。这个转换没有截断,因为unsigned short可以容纳char的所有可能值。 需要注意的是,强制类型转换可能导致数据丢失或不精确,具体取决于数据的范围和类型。在进行转换之前,最好确保你了解数据的范围,并谨慎处理可能的数据截断或溢出问题。...
unsigned short usc; ca = 128; ucb =128; usc = ca + ucb; printf("%d\n", usc); usc = ca + (short)ucb; printf("%d\n", usc); usc = (unsigned char)ca + ucb; printf("%d\n", usc); usc = ca + (char)ucb; printf("%d\n", usc); getchar(); return EXIT_SUCCESS; } 结...
char->int:%c->%d,'A'->65(可打印字符表对应) short int->unsigned short int:%d->%d,12345->12345,,-12345->53191(超出下限范围,+65535) short int->unsinged int:%u->%d,12345->12345,-12345->4294954951(超出下限范围,+4294967295) int->unsigned->int:%d->%u,12345->12345,-12345->4294954951 s...
如果涉及 big_endian 和 little_endian 变化，则互换两个字节即可
unsigned short 转换为 unsigned char可以这样转：unsigned short * word;int size= WideCharToMultiByte(CP_ACP,0,word,-1, NULL, 0, NULL,0);char * AsciiBuff =new char[size];WideCharToMultiByte(CP_ACP,0,word,-1,AsciiBuff,size, NULL, 0);
unsigned short 转换为 unsigned char可以这样转：unsigned short * word;int size= WideCharToMultiByte(CP_ACP,0,word,-1, NULL, 0, NULL,0);char * AsciiBuff =new char[size];WideCharToMultiByte(CP_ACP,0,word,-1,AsciiBuff,size, NULL, 0);
发生了截断，因为unsigned char类型只有1字节，只能保存0~255的数据，而unsigned short 有2字节。所以这样转换之后，unsigned short 高2位的数据就丢失了，低2位数据被保存了。（高低位是以16进制来看的）高低位提取：unsigned short a = 0xFEBA;int b = a & 0xFF00; /* 高2位=0xFE00 */ in...
是的，int会自动转换成unsigned类型；转换规则：存储长度较短的转换成存储长度较长的，并且不丢失信息；常见类型转换顺序：char 、short -> int -> unsigned -> long int -> double <- float 即运算中有double类型，则其他类型会全部转换成double类型。
int main(){ char ca;unsigned char ucb;unsigned short usc;ca = 128;ucb =128;usc = ca + ucb;printf("%d\n", usc);usc = ca + (short)ucb;printf("%d\n", usc);usc = (unsigned char)ca + ucb;printf("%d\n", usc);usc = ca + (char)ucb;printf("%d\n", usc);ge...
unsigned ↑ int ←—— char,short 低 ● 图中横向箭头表示必须的转换，如两个float型数参加运算，虽然它们类型相同，但仍要先转成double型再进行运算，结果亦为double型。 纵向箭头表示当运算符两边的运算数为不同类型时的转换，如一个long 型数据与一个int型数据一起运算，需要先将int型数据转换...