2018年9月3日 · @doctopus: 1.11…111 • 2^-127 is closer to the previous (bigger) number than 0.11…111 • 2^-126 is, but note it was stated earlier that we decided to change the leading bit to 0 instead of decreasing the exponent.

2020年2月5日 · I observed that, when a unsigned char variable stores the value 0 (00000000 2) and it gets decremented by 1 (00000001 2), the variable value turns into 255 (11111111 2), which is the highest value that a unsigned char variable can hold. My question is: why 00000000 2 - 00000001 2 turns into 11111111 2? (I want to see the arithmetic behind it)

Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(s) are you transmitting? a. All devices on the Internet b. All devices on your local network c. The one device that is configured with this IP address d. No devices

2021年2月16日 · Line 4 is reading the representation of the object a as char, which is just about the only time it's legal (not undefined) to access an object with an lvalue not matching the actual type of the object.

2015年10月16日 · 11010100.01011100.00111111.11111111. so: your addresses have first 19 bits equal; the first address has last 13 bits equal to 0; the last address has last 13 bits equal to 1; So, your netmask is /19, or 11111111.11111111.11100000.00000000, or 255.255.224.0.

2013年7月25日 · Unsigned char c = 255 is "11111111" or not? Ask Question Asked 11 years, 8 months ago.

2016年7月18日 · When I say that 0b11111111 is a byte in java, it says " cannot convert int to byte," which is because, as i understand it, 11111111=256, and bytes in java are signed, and go from -128 to 127. But, if a byte is just 8 bits of data, isn't 11111111 8 bits?

Solution for What decimal number corresponds to the binary number 11111111? a. 255 b. 256 c. 127 d. 11,111,111

The book has right. 1111 1111 is the representation of -1 in two's complement. Try add one to 1111 1111. The result is:

2015年7月18日 · C and C++ allow both sign-and-magnitude (with -1 like 10000001) and two's complement form (with -1 like 11111111). In addition both languages allow one's complement form (with -1 like 11111110). However, on most all extant platforms two's complement form is …