我正在尝试在一个amd64上安装Gentoo amd64。我已经找到了Gentoo安装手册中的配置Linux内核部分。使用此命令后:
emerge --ask sys-kernel/gentoo-sources
我得到以下输出:
(chroot) livecd / # emerge --ask sys-kernel/gentoo-sources
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild N ] sys-devel/bc-1.06.
我使用apt从存储库中安装了bc,但无论我做什么都不能让它运行。有谁能解释一下.?
[~]$ pwd
/home/polaris
[~]$ bc
File /home/polaris/.bc is unavailable.
[~]$ which bc
/usr/bin/bc
[~]$ /usr/bin/bc
File /home/polaris/.bc is unavailable.
[~]$ file /usr/bin/bc
/usr/bin/bc: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV),
dynamically li
我正在尝试在上安装Gentoo amd64。我已经设法读到了Gentoo安装手册中的部分。使用此命令后:
emerge --ask sys-kernel/gentoo-sources
我得到以下输出:
(chroot) livecd / # emerge --ask sys-kernel/gentoo-sources
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild N ] sys-devel/bc-1.06.95-r2 USE=
我的问题gdb输出:
Program received signal SIGINT, Interrupt. 0x00007ffff7bcb86b in
__lll_lock_wait_private () from /lib/x86_64-linux-gnu/libpthread.so.0 (gdb) bt
#0 0x00007ffff7bcb86b in __lll_lock_wait_private () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007ffff7bc8bf7 in _L_lock_21 ()
// Description: This program calculates the average of a group of five test scores where the group is dropped.
#include <iostream>
using namespace std;
void getScore(double);
void findLowest(double, double, double, double, double, double);
void calcAverage(double, double, double, double, dou
我试图使用Linux对两个浮点数进行除法,但是它会抛出一个错误,我意识到当我运行bc时,它执行Bandizip命令。
$ bc
bc 6.08(Alpha) - Bandizip Command line tool. Copyright(C) 2011-2017 Bandisoft
Usage:
bc <command> [<switches>...] <archive> [<files>...] [<path_to_extract>]
<Commands>
a : Add files to archive
当用户插入f(x)时,我试图在for循环中运行f(x)。例如,f(x)=(x^2-4)/(x-2)。当我在循环中输入完整的f(x)时,它工作了。但是,当我尝试使用变量时,它不起作用。
F='(${X}^2-4)/(${X}-2)'
for X in 3 4; do
echo "${F}" | bc # this doesn't work
echo "(${X}^2-4)/(${X}-2)" | bc # this one works
done
exit 0
我必须以.csv格式读取外部文件中包含的信息,并且必须将文件的每一行保存在一个数组中。我必须执行该操作的代码如下:
int generate_matrix(char *filename){
FILE *input1 = fopen(filename,"r");
if(input1 == NULL){
return 1;
}
//counts the number of rows the file contains
int rows = 1;
char c = fgetc(input1);
while(!feof(input1)){
在构建过程中,我反复得到以下错误 Running with gitlab-runner 13.8.0 (775dd39d)
on docker+machine ABwVypz2
Preparing the "docker+machine" executor
00:16
Using Docker executor with image docker:latest ...
Starting service docker:dind ...
Pulling docker image docker:dind ...
Using docker image sha256:6e82c57
代码:
class AB{
int i=5;
}
class BC{
public void test(AB a){
a.i=10;
}
}
public class ATest{
public static void main(String aa[]){
AB a = new AB();
//Base class variable value
System.out.println(a.i);
BC b = new BC();
//Modifying the object "a"
我正在尝试使用lli来解释/即时编译一个使用共享对象afl-llvm-rt.so中定义的函数的位码文件a.bc。当我尝试像这样使用lli时 lli -dlopen ./afl-llvm-rt.so a.bc 我得到了: PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0. Program arguments: lli -load ./afl-llvm-rt.o a.bc
#0 0x00007fa2a620f833 llvm::sys::Pri
我在Java和C语言中学到了
我想我可以在C++中看到一种不同的行为,因为它具有按引用传递的特性,但是我的代码似乎同意上面的说法.
void reassign(string & a);
int main()
{
string x = "abcd";
cout <<"x is " << x <<" at " << &x <<endl; //"x is abcd at 0x7bc7ebd5b720"
reassign(x);
我通过ssh连接到另一台机器来执行bash脚本,其有问题的部分如下:
fkeypar "ex1.fef[1]" TSTARTI #### fkeypar is an external command to get some values to assign to the subsequent variables
t0i="$(expr $(pget fkeypar value) - 11544)"
fkeypar "ex1lc.fits[2]" T
我有一个通过docker容器使用maven运行的java项目。我有一个指定本地环境变量的属性文件。但是,我希望在java中修改环境变量,或者可能通过maven pom.xml或docker file/docker compose修改环境变量。
我尝试使用以下命令在docker文件中设置环境变量
ENV new_env = old_env
格式,但当我运行docker:run时,它不工作。这就是我得到的。
bc6cc4> Execute a program under the supervision of a valid init process (tini)
bc6cc4>
b
安装Android Studio 3.0.0后,我收到以下警告:
Warning:Linking two modules of different data layouts: 'C:\Users\name\AppData\Local\Android\Sdk\build-tools\27.0.0\renderscript\lib\bc\armeabi-v7a\libclcore.bc' is 'e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64' whereas 'C:\Users\path\debug\raw\