|
大小: 1357
备注:
|
← 于2008-02-23 15:35:52修订的的版本5 ⇥
大小: 1357
备注: converted to 1.6 markup
|
| 删除的内容标记成这样。 | 加入的内容标记成这样。 |
| 行号 3: | 行号 3: |
| [[Navigation(slides)]] | <<Navigation(slides)>> |
<<Navigation: 执行失败 ['AllContext' object has no attribute 'values'] (see also the log)>>
A.2.6 String Literals
A string literal, also called a string constant, is a sequence of characters surrounded by double quotes as in "...". A string has type "array of characters" and storage class static (see Par.A.3 below) and is initialized with the given characters. Whether identical string literals are distinct is implementation-defined, and the behavior of a program that attempts to alter a string literal is undefined.
Adjacent string literals are concatenated into a single string. After any concatenation, a null byte \0 is appended to the string so that programs that scan the string can find its end. String literals do not contain newline or double-quote characters; in order to represent them, the same escape sequences as for character constants are available.
As with character constants, string literals in an extended character set are written with a preceding L, as in L"...". Wide-character string literals have type "array of wchar_t." Concatenation of ordinary and wide string literals is undefined.
- The specification that string literals need not be distinct, and the prohibition against modifying them, are new in the ANSI standard, as is the concatenation of adjacent string literals. Wide-character string literals are new.