utf

Unicode, UTF, ASCII, ANSI format differences

由 扶醉桌前 提交于 2019-11-26 03:24:20
问题 What is the difference between the Unicode , UTF8 , UTF7 , UTF16 , UTF32 , ASCII , and ANSI encodings? In what way are these helpful for programmers? 回答1: Going down your list: "Unicode" isn't an encoding, although unfortunately, a lot of documentation imprecisely uses it to refer to whichever Unicode encoding that particular system uses by default. On Windows and Java, this often means UTF-16; in many other places, it means UTF-8. Properly, Unicode refers to the abstract character set itself

Unicode encoding for string literals in C++11

由 岁酱吖の 提交于 2019-11-26 01:27:16
问题 Following a related question, I\'d like to ask about the new character and string literal types in C++11. It seems that we now have four sorts of characters and five sorts of string literals. The character types: char a = \'\\x30\'; // character, no semantics wchar_t b = L\'\\xFFEF\'; // wide character, no semantics char16_t c = u\'\\u00F6\'; // 16-bit, assumed UTF16? char32_t d = U\'\\U0010FFFF\'; // 32-bit, assumed UCS-4 And the string literals: char A[] = \"Hello\\x0A\"; // byte string, \

Unicode, UTF, ASCII, ANSI format differences

由 半腔热情 提交于 2019-11-25 20:03:40
What is the difference between the Unicode , UTF8 , UTF7 , UTF16 , UTF32 , ASCII , and ANSI encodings? In what way are these helpful for programmers? Going down your list: " Unicode " isn't an encoding, although unfortunately, a lot of documentation imprecisely uses it to refer to whichever Unicode encoding that particular system uses by default. On Windows and Java, this often means UTF-16; in many other places, it means UTF-8. Properly, Unicode refers to the abstract character set itself, not to any particular encoding. UTF-16 : 2 bytes per "code unit". This is the native format of strings
订阅 utf