C++ Primer(English Version)Page40 Table 2.2 是需要记忆一下的。(有些记不住,就记了下笔记)
Character and Character String Literals
Prefix |
Meaning / Type |
u |
Unicode 16 character / char16_t |
U |
Unicode 32 character / char32_t |
L |
wide character / wchar_t |
u8 |
utf-8 (string literals only) / char |
Integer Literals
Suffix |
Minimum Type |
u or U |
unsigned |
l or L |
long |
ll or LL |
long long |
Floating-Point Literals
Suffix |
Type |
f or F |
float |
l or L |
long double |
示例请见【C++ Primer(5th Edition) Exercise】练习程序 - Chapter2(第二章)Exercise 2.5 & 2.7。