C的头文件中的函数体在哪里
当我查看 C（或 C++）的头文件时 例如 stdio.h 有一些函数的定义 例如
_CRTIMP FILE* __cdecl __MINGW_NOTHROW fopen (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW freopen (const char*, const char*, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fflush (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fclose (FILE*);
/* MS puts remove & rename (but not wide versions) in io.h also */
_CRTIMP int __cdecl __MINGW_NOTHROW remove (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rename (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW tmpfile (void);
_CRTIMP char* __cdecl __MINGW_NOTHROW tmpnam (char*);
你能告诉我吗 这些函数的主体在哪里......
When i look at header files files of C(or C++)
for example
stdio.h
there are definition of some functions
for example
_CRTIMP FILE* __cdecl __MINGW_NOTHROW fopen (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW freopen (const char*, const char*, FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fflush (FILE*);
_CRTIMP int __cdecl __MINGW_NOTHROW fclose (FILE*);
/* MS puts remove & rename (but not wide versions) in io.h also */
_CRTIMP int __cdecl __MINGW_NOTHROW remove (const char*);
_CRTIMP int __cdecl __MINGW_NOTHROW rename (const char*, const char*);
_CRTIMP FILE* __cdecl __MINGW_NOTHROW tmpfile (void);
_CRTIMP char* __cdecl __MINGW_NOTHROW tmpnam (char*);
Can you tell me
where are the body of theese functions.....
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通常，正如@Daren Thomas所说，您将拥有与hader（.h文件）匹配的.c文件。然而，对于标准库，这些c文件是预先编译好的并放在一个大文件中（例如libc.so），并且可以在Windows中编译器的lib文件夹中以及/usr/lib文件夹中找到在 Unix/Linus 操作系统中。
对于g++，libc库被用作标准库。您可以从这里下载该软件包：
http://ftp.gnu.org /gnu/glibc/glibc-2.9.tar.gz
...并浏览所有函数的源代码。
Normally, as @Daren Thomas said, you'll have .c file matching the hader (.h file). However, regarding the standard library, these c files come precompiled and put together in a big file (for example, libc.so), and can be found in the lib folder of your compiler in Windows, and in the /usr/lib folder in Unix/Linus OS's.
For g++, the libc library is used as the standard library. You can download the package from here:
http://ftp.gnu.org/gnu/glibc/glibc-2.9.tar.gz
... and browse the source code for all functions.
通常，正文位于同名的文件中，但以
.c或.cpp结尾。有时您没有源代码，因此请查找
.o，其中包含您的库的目标代码，即编译后的库。头文件就是一种 API 描述。在特殊情况下，例如作为标准库一部分的stdio.h，这些文件的位置是特定于实现的。事实上，这些文件的存在也是特定于实现的 - 我相信编译器可以选择提供此信息，但它愿意这样做。
Normally, the body is in a file with the same name, but ending in
.cor.cpp.Sometimes you don't have the source code, so look for
.o, which contains the object code for your library, i.e. the compiled library. The header file is then a kind of API description.In special cases like
stdio.h, which are part of the standard library, the location of these files are implementation specific. In fact, the existence of these files are implementation specific too - I believe a compiler may choose to provide this information however it pleases to do so.