Question

我正在尝试编译#include the library

的代码

在代码中我有以下几行：

int main()
{
    clock_t begin = clock();
    random_device rd;
    mt19937 gen(rd());
    uniform_real_distribution<> U(0,1);
    default_random_engine generator;
    rr1=U(gen); 
}

当我使用以下行编译时：

 icpc  -std=c++0x -std=c++11 -o main main.cpp -O3

我收到以下错误：

main.cpp（152）：错误：标识符＆＃34; uniform_real_distribution＆＃34;未定义           uniform_real_distribution＆LT;＆GT; U（0,1）;           ^

main.cpp（152）：错误：预期表达式           uniform_real_distribution＆LT;＆GT; U（0,1）;                                     ^

main.cpp（368）：错误：标识符＆＃34; default_random_engine＆＃34;未定义           default_random_engine generator;           ^

main.cpp（441）：错误：标识符＆＃34; U＆＃34;未定义                   RR1 = U（GEN）; //时间间隔的第一个随机数

main.cpp（509）：警告＃1595：非POD（普通旧数据）类类型   通过省略号                           RR1 = U（GEN）;

任何想法如何解决这个问题？

Answer 1

此问题是由您的Intel编译器icpc版本不完全支持c ++ 11引起的，c ++ 11实际上是c ++ 0x。

这意味着：

您需要更新英特尔的编译器以支持uniform_real_distribution。
或使用某些库，例如boost，PCG等
或者仍然使用c ++ 11方式，但没有uniform_real_distribution。例如，直接使用mt19937，mt19937_64或任何其他伪随机生成器。
或使用非c ++ 11方式，即rand（）或rand_r（）用于非严重用途。

我想上面的部分回答了你的问题。

想知道更多？

对于英特尔用户，您可以先检查编译器的兼容性，并将icc的版本号翻译成相对相同的gcc版本号，然后从{{查看} 3}}

对于GNU的用户，您可以直接从c++0x/c++11 supported list检查编译器的兼容性

例如，你可以


$icpc -v

你可能会得到类似的东西


icpc version a.b.c (gcc version x.y.z compatibility)

这意味着你的Inter编译器的版本是a.b.c，它的兼容性是gcc版本x.y.z。

并且uniform_real_distribution支持{ //----| Build UI var stImporterWin = new Window("palette", "ST Import Panel", undefined, {resizeable:true}); stImporterWin.orientation = "column"; var imageSequenceGroup = stImporterWin.add("group"); imageSequenceGroup.alignment = ["fill", "fill"]; imageSequenceGroup.orientation = "column"; var imageSequenceTree = imageSequenceGroup.add("treeview"); imageSequenceTree.preferredSize = [600,650]; imageSequenceTree.alignment = ["fill", "fill"]; stImporterWin.onResize = function () { this.layout.resize(); } stImporterWin.show(); filesArray = ["//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/test image2_0001.txt", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/test image3.0001.txt", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/test image_001.txt", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/0040-Major Trans M13_Logo_v02.xml", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.AO.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.MultiMatteElement.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.RGB_color.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.VRaySelfIllumination.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.VRaySpecular.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.VRayZDepth.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/0040-Major Trans M13_01_logo_.origRGB.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T1/Thumbs.db", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/0040-Major Trans M13_logo_02.0080.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/Thumbs.db", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/AO/0040-Major Trans M13_logo_02._AO0080.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/VRaySelfIllumination/0040-Major Trans M13_logo_02._VRaySelfIllumination0080.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/VRaySpecular/0040-Major Trans M13_logo_02._VRaySpecular0080.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Logo/T2/VRayZDepth/0040-Major Trans M13_logo_02._VRayZDepth0080.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/T1/Thumbs.db", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.AO.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.MultiMatteElement.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.RGB_color.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.VRaySelfIllumination.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.VRaySpecular.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.VRayZDepth.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/0040-Major Trans M13_01_text_.origRGB.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T1/Thumbs.db", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..AO.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..MatteText.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..RGB_color.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..VRaySelfIllumination.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..VRaySpecular.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..VRayZDepth.0000.png", "//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders/Text/T2 ext/NY18_MajorTrans Ext_01_M13_text..origRGB.0000.png"]; rootFolder = File("//VFXJobs/NY-18/02_Sequences/IntroVideo/0040-Major Trans M13/Renders"); var node0 = imageSequenceTree.add("node", rootFolder.fsName.replace(/\\/g, "/")); node0.expanded = true; //build out arrays from the files for (var i = 0; i < filesArray.length; i++) { filesArray[i] = filesArray[i].split("/"); } //recursive tree building var rootAsArray = rootFolder.fsName.replace(/\\/g, "/").split("/"); BuildChildNodes(rootAsArray, filesArray, node0, 0); // for debug purposes I added "killme" so that we only recurse once for now function BuildChildNodes (root, files, parentNode, killme) { alert("Root: " + root.join("/")); previousDirName = ""; for (var i = 0; i < files.length; i++) { var currentPath = files[i]; if (currentPath.length > root.length+1) { // we got a sub-folder so add it to the tree if unique and recurse var dirName = currentPath[root.length]; if (dirName != previousDirName) { var newNode = parentNode.add("node", dirName); newNode.expanded = true; previousDirName = dirName; // recurse var newRoot = currentPath.slice(0, root.length+1); var newFilesList = files.slice(i); //make sure we only get this dir for (var j = 0; j < newFilesList.length; j++) { if (newFilesList[j].slice(0, root.length+1).join("/") != newRoot.join("/")) { newFilesList = newFilesList.slice(0,j); break; } }; if (killme == 0) { alert("recursing " + newRoot.join("/")); BuildChildNodes(newRoot, newFilesList, newNode, 1); } } } else { // we got a file in this dir, add it to the tree var fileName = currentPath[root.length]; var newNode = parentNode.add("item", fileName); } } } } 支持c++0x/c++11 supported list？（GCC 4.4.7经过验证的支持）

然后，如果您的x.y.z晚于4.4.5？（肯定是4.4.7），您可以使用＆＃39; uniform_xxx_distribution＆＃39;函数系列没有兼容性问题。

用icpc编译 - 使用库

1 个答案: