Does GCC 4.7 on Linux/x86_64 have a default character encoding by which it validates and decodes the contents of string literals in C source files? Is this configurable?
Linux / x86_64上的GCC 4.7是否具有默认字符编码，通过它可以验证和解码C源文件中字符串文字的内容？这是可配置的吗？
Further, when linking the string data from string literals into the data section of the output does it have a default execution character encoding? Is this configurable?
此外，当将字符串文字中的字符串数据链接到输出的数据部分时，它是否具有默认的执行字符编码？这是可配置的吗？
In any configuration is it possible to have a source character encoding that differs from the execution character encoding? (That is will gcc ever transcode between character encodings?)
在任何配置中，是否可以使源字符编码与执行字符编码不同？ （那将是gcc在字符编码之间进行转码吗？）
1 个解决方案
#1
12
I don't know how well these options actually work (not using them atm; I still prefer treating string literals as 'ASCII only', since localized strings come from external files anyway so it's mostly things like format strings or filenames), but they have added options like
我不知道这些选项实际上有多好（不使用它们atm;我仍然更喜欢将字符串文字视为'仅限ASCII'，因为本地化字符串无论如何都来自外部文件，所以它主要是格式字符串或文件名），但它们添加了类似的选项
-fexec-charset=charset
Set the execution character set, used for string and character constants. The default
is UTF-8. charset can be any encoding supported by the system's iconv library routine.
-fwide-exec-charset=charset
Set the wide execution character set, used for wide string and character constants.
The default is UTF-32 or UTF-16, whichever corresponds to the width of wchar_t. As
with -fexec-charset, charset can be any encoding supported by the system's iconv
library routine; however, you will have problems with encodings that do not fit
exactly in wchar_t.
-finput-charset=charset
Set the input character set, used for translation from the character set of the
input file to the source character set used by GCC. If the locale does not specify,
or GCC cannot get this information from the locale, the default is UTF-8. This can
be overridden by either the locale or this command line option. Currently the command
line option takes precedence if there's a conflict. charset can be any encoding
supported by the system's iconv library routine.
#1
12
I don't know how well these options actually work (not using them atm; I still prefer treating string literals as 'ASCII only', since localized strings come from external files anyway so it's mostly things like format strings or filenames), but they have added options like
我不知道这些选项实际上有多好（不使用它们atm;我仍然更喜欢将字符串文字视为'仅限ASCII'，因为本地化字符串无论如何都来自外部文件，所以它主要是格式字符串或文件名），但它们添加了类似的选项
-fexec-charset=charset
Set the execution character set, used for string and character constants. The default
is UTF-8. charset can be any encoding supported by the system's iconv library routine.
-fwide-exec-charset=charset
Set the wide execution character set, used for wide string and character constants.
The default is UTF-32 or UTF-16, whichever corresponds to the width of wchar_t. As
with -fexec-charset, charset can be any encoding supported by the system's iconv
library routine; however, you will have problems with encodings that do not fit
exactly in wchar_t.
-finput-charset=charset
Set the input character set, used for translation from the character set of the
input file to the source character set used by GCC. If the locale does not specify,
or GCC cannot get this information from the locale, the default is UTF-8. This can
be overridden by either the locale or this command line option. Currently the command
line option takes precedence if there's a conflict. charset can be any encoding
supported by the system's iconv library routine.