c++ - System() function, and calling internet explorer from it, DevC++ -

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i tried making program that'd take website info, feed system() start website. i'm aware characters (\, ",') don't fed output directly, used escape sequences.

i wrote program, command prompt refuses go past c:\ path. if copy paste command displayed program, internet explorer gets launched. case isn't program. can tell me error?

here code:

#include<iostream> #include<cstdlib> using namespace std; int main() {      cout<<"please enter website wish visit: ";     string website,web;     cin>>web;     web= " " + web;     website = "\"%programfiles%\\internet explorer\\iexplore\""+web;     cout<<"\n"<<website<<endl<<endl<<endl;     system(website.c_str());     return 0; }

pass in double double quotes:

website = "\"\"%programfiles%\\internet explorer\\iexplore\"\""+web;

the system("something") call runs command interpreter cmd in way similar (but not identical) cmd /c something. has implications when there spaces in command name, see e.g this. cannot tell why single double quotes work when there's no environment variable involved, , not work otherwise, fact is, double double quotes work.

if want launch user's preferred browser, consider calling

system("start http://" + websitename);

instead.


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