我有一个运行linux命令的C++代码,我想模拟分段错误,即SIGSEGV,同时通过C++代码执行C++命令。所以我的代码是这样的
int main(){
string cmd = "some linux command that should throw seg fault";
execute_linux_comand(cmd); // Want to simulate segfault coming while executing this command
}
我应该放什么"cmd“,这样它才能将SIGSEGV发送到通过调用该函数创建的子进程?
我对这个问题的回答是:
FIRSTNAME COURSENAME
---------- --------------------
Anand C++
Bala C++
Dileep Linux and C
Gowri Java
Gowri Linux and C
Gowri C#
John C++
John Oracle
Prem Linux and C
Priya Java
Priya Oracle
Priya C#
Rahul Oracle
但是预期的输
temp_holder.clear();
temp_holder << n;
n_str = temp_holder.str();
int f = count(n_str.begin(), n_str.end(), a);
这是我的代码,这是g++输出:
In file included from /usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../include/c++/4.7.0/algorithm:63:0,
from trintatres.cpp:5:
/usr/l
int delta[4][2] = {{0,1},{1,0},{0,-1},{-1,0}};
random_shuffle(&delta[0],&delta[4]);
编译错误:
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_algobase.h: In function 'void std::swap(_Tp&, _Tp&) [with _Tp = int [2]]':
/usr/lib/gcc/x86_64-redhat-linux/
我尝试用"g++ -std=c++11 -o w w.cpp“编译下面的程序,得到错误”cc1plus: error: unrecognized command line option "-std=c++11“”。已尝试使用g++ -Dstd=c++11 -o w w.cpp进行编译,并获得以下错误集:
In file included from /usr/lib/gcc/i686-redhat-linux/4.4.7/../../../../include/c++/4.4.7/iosfwd:41,
from /usr/lib/gcc/i686
最近,我无意中遇到了“在此范围内未声明”的多次错误,如下所示:
/usr/include/c++/9/ext/string_conversions.h:84:25: error: ‘ERANGE’ was not declared in this scope
84 | else if (errno == ERANGE
| ^~~~~~
In file included from /usr/include/c++/9/system_error:39,
from /usr/include
我是linux的初学者,当我在我的raspberry pi上运行我的第一个程序"HELLOWORLD“时,出现了这个警告:
pi@raspberrypi:~/raspitest $ g++ test.cpp -o test
In file included from /usr/include/c++/8/ext/string_conversions.h:41,
from /usr/include/c++/8/bits/basic_string.h:6400,
from /usr/include/c++/8/string
在将麦克风应用程序的源代码与英特尔C++ (icpc)编译器链接时,我遇到错误。
intel-icc/2013-64版本:
SOMETHINGMIC.o: relocation R_X86_64_PC32 against undefined symbol `_ZN9__gnu_cxx21__atomic_add_dispatchEPii' can not be used when making a shared object; recompile with -fPIC
x86_64-k1om-linux-ld: final link failed: Bad value
intel-ic
我正在尝试编译一个包含<iostream>头的简单c++代码。令人惊讶的是,我正面临着我以前从未遇到过的错误。如果删除了<iostream>头,一切都会正常工作。
代码:
#include <iostream>
int main(){
return 0;
}
编译错误:
$ g++ temp.cpp
In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/stdint.h:9:0,
from /usr/include/c++/7/cstdint:4
Visual Studio代码中的问题控制台向我显示以下向上消息:
#include errors detected. Please update your includePath. InteliSense features for this translation unit
cannot open source file "omp.h"
即使在我找到omp.h的路径后,仍然显示此消息:
find /usr -name omp.h
我的c_cpp_properties.json文件:
{
"configurations": [
{
我最近下载了链接中提到的代码。我的GCC版本是4.1.2。在console中开始出现以下错误之前,编译过程至少进行了一个小时。
LLVM支持声明我需要使用gcc44-c++,这在我们的机器中是不可用的:
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
# yum install gcc44-c++
Loaded plugins: security
ppsd-nonprod-base
当我试图使用c++编译任何g++程序时,我得到以下错误,堆栈跟踪非常长,这只是一个示例:
...........
/usr/include/x86_64-linux-gnu/bits/byteswap.h:47:2: error: stray ‘\330’ in program
/usr/include/x86_64-linux-gnu/bits/byteswap.h:47:2: error: stray ‘\330’ in program
/usr/include/x86_64-linux-gnu/bits/byteswap.h:47:2: error: stray ‘\340’ in p