今天拷贝了一段代码
struct Test
{
Test( int ) {}
Test() {}
void fun() {}
};
void main( void )
{
Test a(1);
a.fun();
Test b();
b.fun();
}
编译的时候报错
01.cpp:16:1: error: stray ‘\240’ in program
01.cpp:16:1: error: stray ‘\302’ in program
01.cpp:16:1: error: stray ‘\240’ in program
01.cpp:16:1: error: stray ‘\302’ in program
01.cpp:16:1: error: stray ‘\240’ in program
01.cpp: In function ‘int main()’:
01.cpp:14:4: error: request for member ‘fun’ in ‘b’, which is of non-class type ‘Test()’
b.fun();
显然是字符的问题，
[root@ba face]# cat -v 01.cpp
#include <stdio.h>
struct TestM-BM- M-BM- M-BM-
{M-BM- M-BM- M-BM-
Test(int){}M-BM- M-BM- M-BM-
Test(){}M-BM- M-BM- M-BM-
void fun(){}M-BM- M-BM- M-BM-
};M-BM- M-BM- M-BM- intM-BM- main(void)M-BM- M-BM- M-BM-
{M-BM- M-BM- M-BM-
TestM-BM- a(1);M-BM- M-BM- M-BM-
a.fun();M-BM- M-BM- M-BM-
TestM-BM- b();M-BM- M-BM- M-BM-
b.fun();M-BM- M-BM- M-BM-
return 0;
}M-BM- M-BM- M-BM-
猜想M-BM-是Linux下的一个特殊字符，要怎么替换呢，想到用十六进制方式替换，那么首先查看这个特殊字符的十六进制表示，用od命令
[root@ba face]# od -tcx1 01.cpp
000000 # i n c l u d e < s t d i o .
23 69 6e 63 6c 75 64 65 20 3c 73 74 64 69 6f 2e
000010 h > \n \n s t r u c t T e s t 302
68 3e 0a 0a 73 74 72 75 63 74 20 54 65 73 74 c2
000020 240 302 240 302 240 \n { 302 240 302 240 302 240 \n T e
a0 c2 a0 c2 a0 0a 7b c2 a0 c2 a0 c2 a0 0a 54 65
000030 s t ( i n t ) { } 302 240 302 240 302 240 \n
73 74 28 69 6e 74 29 7b 7d c2 a0 c2 a0 c2 a0 0a
000040 T e s t ( ) { } 302 240 302 240 302 240 \n v
54 65 73 74 28 29 7b 7d c2 a0 c2 a0 c2 a0 0a 76
000050 o i d 302 240 f u n ( ) { } 302 240 302 240
6f 69 64 c2 a0 66 75 6e 28 29 7b 7d c2 a0 c2 a0
000060 302 240 \n } ; 302 240 302 240 302 240 \n v o i d
c2 a0 0a 7d 3b c2 a0 c2 a0 c2 a0 0a 76 6f 69 64
000070 302 240 m a i n ( v o i d ) 302 240 302 240
c2 a0 6d 61 69 6e 28 76 6f 69 64 29 c2 a0 c2 a0
000080 302 240 \n { 302 240 302 240 302 240 \n T e s t 302
c2 a0 0a 7b c2 a0 c2 a0 c2 a0 0a 54 65 73 74 c2
000090 240 a ( 1 ) ; 302 240 302 240 302 240 \n a . f
a0 61 28 31 29 3b c2 a0 c2 a0 c2 a0 0a 61 2e 66
0000a0 u n ( ) ; 302 240 302 240 302 240 \n T e s t
75 6e 28 29 3b c2 a0 c2 a0 c2 a0 0a 54 65 73 74
0000b0 302 240 b ( ) ; 302 240 302 240 302 240 \n b . f
c2 a0 62 28 29 3b c2 a0 c2 a0 c2 a0 0a 62 2e 66
0000c0 u n ( ) ; 302 240 302 240 302 240 \n } 302 240 \n
75 6e 28 29 3b c2 a0 c2 a0 c2 a0 0a 7d c2 a0 0a
0000d0
可以看到这个特殊字符的十六进制表示是c2 a0，,用如下命令替换即可
[root@ba face]# sed -i 's/\xc2\xa0//g' 01.cpp
[root@ba face]# cat -v 01.cpp
#include <stdio.h>
struct Test
{
Test(int){}
Test(){}
void fun(){}
}; int main(void)
{
Test a(1);
a.fun();
Test b();
b.fun();
return 0;
}
[root@ba face]# g++ 01.cpp
01.cpp: In function ‘int main()’:
01.cpp:14:4: error: request for member ‘fun’ in ‘b’, which is of non-class type ‘Test()’
b.fun();