開發平台(Platform):Linux GCC
// Code:
short short_int_1;
unsigned int u_int_tmp;
short_int_1 = 0xF0F0;
u_int_tmp = short_int_1;
printf("u_int_tmp = %#010x\n", u_int_tmp);
u_int_tmp = 0;
printf("u_int_tmp = %#010x\n", u_int_tmp);
u_int_tmp = u_int_tmp | short_int_1;
printf("u_int_tmp = %#010x\n", u_int_tmp);

你有意識到這 signed short 是負數嗎?

請問有辦法將short以bit copy的方式assign給int嗎？回樓上，我知道這個short是負數

(unsigned int)(unsigned short)signed_short_value

sign extension / zero extension

感謝LPH66的方法我會找時間搜尋firose的提示，感謝分享資訊

話說那樣 signed 轉 unsigned 到底是怎麼定義的呢?

http://busybox.net/~landley/c99-draft.html#6.3.1.3我想應該是根據6.3.1.3#2

got it thanks