对于remove()， errno有哪些 ？
如题！
谢谢！！！！ remove errno
[解决办法]
errno 错误处理机制
数学错误 ：溢出ERANGE 有效值丢失 域错误EDOM
定义错误 ：<math.h> <stdio.h> <stdlib.h> <siganl.h>中函数出错 保存的errno
[解决办法]
相应定义错误查看 man page 相应函数的errno
remove
错误代码：
1、EROFS 欲写入的文件存在于只读文件系统内。
2、EFAULT 参数pathname 指针超出可存取内存空间。
3、ENAMETOOLONG 参数pathname 太长。
4、ENOMEM 核心内存不足。
5、ELOOP 参数pathname 有过多符号连接问题。
6、EIO I/O 存取错误。
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[解决办法]
remove, _wremove
Delete a file.
int remove( const char *path );
int _wremove( const wchar_t *path );
Routine Required Header Compatibility
remove <stdio.h> or <io.h> ANSI, Win 95, Win NT
_wremove <stdio.h> or <wchar.h> Win NT
For additional compatibility information, see Compatibility in the Introduction.
Libraries
LIBC.LIB Single thread static library, retail version
LIBCMT.LIB Multithread static library, retail version
MSVCRT.LIB Import library for MSVCRT.DLL, retail version
Return Value
Each of these functions returns 0 if the file is successfully deleted. Otherwise, it returns –1 and sets errno either to EACCES to indicate that the path specifies a read-only file, or to ENOENT to indicate that the filename or path was not found or that the path specifies a directory. This function fails and returns -1 if the file is open.
Parameter
path
Path of file to be removed
Remarks
The remove function deletes the file specified by path. _wremove is a wide-character version of _remove; the path argument to _wremove is a wide-character string. _wremove and _remove behave identically otherwise. All handles to a file must be closed before it can be deleted.
Generic-Text Routine Mappings
TCHAR.H Routine _UNICODE & _MBCS Not Defined _MBCS Defined _UNICODE Defined
_tremove remove remove _wremove
Example
/* REMOVE.C: This program uses remove to delete REMOVE.OBJ. */
#include <stdio.h>
void main( void )
{
if( remove( "remove.obj" ) == -1 )
perror( "Could not delete 'REMOVE.OBJ'" );
else
printf( "Deleted 'REMOVE.OBJ'\n" );
}
Output
Deleted 'REMOVE.OBJ'
File Handling Routines
See Also _unlink
