小编Mr *_*rry的帖子

在mongodb shell上更新forEach

我有一个有2条记录的集合aTable:

 {
    "title" : "record 1",
    "fields" : [ 
        {
            "_id" : 1,
            "items" : [ 
                1
            ]
        },
        {
            "_id" : 2,
            "items" : [ 
                2,3,4
            ]
        },
        {
            "_id" : 3,
            "items" : [ 
                5
            ]
        }
    ]
},

{
        "title" : "record 2",
        "fields" : [ 
            {
                "_id" : 4,
                "items" : [ 
                    7,8,9,10
                ]
            },
            {
                "_id" : 5,
                "items" : [ 

                ]
            },
            {
                "_id" : 6,
                "items" : [ 
                    11,12
                ]
            } …
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javascript mongodb mongo-shell

22
推荐指数
3
解决办法
4万
查看次数

带有utf8字符的jstring(JNI)到std :: string(c ++)

如何将jstring(JNI)转换为std::string(c ++)utf8字符?

这是我的代码.它适用于非utf8字符,但utf8字符有问题.

std::string jstring2string(JNIEnv *env, jstring jStr){
    const char *cstr = env->GetStringUTFChars(jStr, NULL);
    std::string str = std::string(cstr);
    env->ReleaseStringUTFChars(jStr, str);
    return str;
}
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c++ java-native-interface android share c++11

15
推荐指数
2
解决办法
2万
查看次数

cc1plus:错误:无法识别的命令行选项"-std = c ++ 11"

我正在尝试在centos 6,5上安装php-cpp.当我运行命令make时,我收到错误:

make: Warning: File `Makefile' has modification time 5.1e+05 s in the future
mkdir -p shared/common
mkdir -p shared/zend
mkdir -p shared/hhvm
g++ -Wall -c -g -std=c++11 -fpic -o shared/common/modifiers.o common/modifiers.cpp
cc1plus: error: unrecognized command line option "-std=c++11"
make: *** [shared/common/modifiers.o] Error 1
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我该怎么做才能解决这个问题?我的g ++是:

g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-11)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS …
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g++ centos php-cpp

5
推荐指数
1
解决办法
3万
查看次数

如何重命名或覆盖php功能?

我如何用runkit重新定义php中的函数?

$helloWorld = 'echo "Call require_once";';
runkit_function_redefine('require_once', '$word', $helloWorld);
require_once("abc.php");
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我在php.ini中找到了

runkit.internal_override=1
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当我跑,它显示:

Warning: runkit_function_redefine() [function.runkit-function-redefine]: require_once() not found in hhd_debug.php on line 2

Warning: require_once(abc.php) [function.require-once]: failed to open stream: No such file or directory in hhd_debug.php on line 3

Fatal error: require_once() [function.require]: Failed opening required 'abc.php' (include_path='.;xampp\php\PEAR') in hhd_debug.php on line 3
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我怎么能解决它?请帮我!

php runkit

2
推荐指数
1
解决办法
808
查看次数