我试图通过LEX进行一些词法分析，并且我想在定义字段中包含一些c ++库。但是，我尝试了几次，但始终收到此错误消息：
sample.l:2:23: fatal error: iostream: No such file or directory compilation terminated.
这是我的代码的样子：
%{ #include<iostream> void Print_input(char* yytext){ //function... } %}
有人知道吗？提前致谢。
答案 0 :(得分：0)
您正在使用{
"name": "myapp",
"description": "myapp",
"version": "1.35.0",
"private": true,
"scripts": {
"dev": "nodemon app.js",
"debug": "nodemon app.js"
},
"dependencies": {
"async": "1.3.0",
"aws-sdk": "2.7.20",
"aws-xray-sdk": "^2.1.0",
"aws-xray-sdk-restify": "^1.3.0-beta",
"bcrypt": "0.8.5",
"body-parser": "1.12.3",
"compression": "^1.7.0",
"connect-flash": "0.1.1",
"cookie-parser": "1.3.4",
"cron": "1.0.9",
"csurf": "^1.9.0",
"csvtojson": "^1.1.2",
"date-utils": "1.2.16",
"dotenv": "4.0.0",
"email-templates": "1.2.1",
"express": "4.12.3",
"express-handlebars": "2.0.0",
"express-jwt": "^5.1.0",
"express-mailer": "0.2.4",
"express-session": "1.11.1",
"express-validator": "3.1.3",
"handlebars": "^3.0.3",
"helmet": "^3.5.0",
"html-pdf": "1.4.0",
"json-2-csv": "2.0.12",
"jsonwebtoken": "^7.3.0",
"multer": "^0.1.8",
"mysql": "2.6.2",
"newrelic": "1.25.0",
"node-schedule": "^1.3.0",
"nodemailer": "^1.3.4",
"nodemailer-ses-transport": "1.2.0",
"passport": "0.2.1",
"passport-local": "1.0.0",
"path": "0.11.14",
"promise": "7.0.0",
"qs": "^2.4.1",
"replaceall": "0.1.6",
"request": "2.55.0",
"run-parallel": "1.1.0",
"validator": "^7.0.0",
"winston": "^2.3.1",
"winston-daily-rotate-file": "^1.7.0",
"xlsx": "0.8.8"
},
"devDependencies": {
"nodemon": "^1.17.3"
}
}
将C ++代码编译为C，而改为使用gcc。
请注意，尽管gcc通常使用文件扩展名来确定语言，但是g++即使没有g++选项也会将.c文件编译为C ++。