int main() { char rtv[4]; char2hex(254, rtv); printf("%s\n", rtv); }
struct bit { unsigned char hh:4; unsigned char lh:4; }; char matrix[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; int char2hex(char value, char *rtv) { struct bit *lbit; lbit = (struct bit *)&value; sprintf(rtv,"%c%c", matrix[lbit->lh], matrix[lbit->hh]); }
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int main() { char rtv[4]; char2hex(254, rtv); printf("%s\n", rtv); }코드
struct bit { unsigned char hh:4; unsigned char lh:4; }; char matrix[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; int char2hex(char value, char *rtv) { struct bit *lbit; lbit = (struct bit *)&value; sprintf(rtv,"%c%c", matrix[lbit->lh], matrix[lbit->hh]); }변경사항
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