c++ - Read from a file different types of variables (1 per line) -

i have app written in c++ gets parameters extern txt file. file has 1 variable per line , they're different kinds like:

0
0.8
c:\documents\textfile.txt
9

i tried (not don't have code now)

    file* f; char line[300]; f = fopen("parameters.txt", "r");      scanf(line, val1);     scanf(line, val2);     scanf(line, val3);     fclose(f); 

but doesn't work, tried fgets , fgetc changes , didn't work. or idea? variables same number , have same types in each place (so think don't need while or loop). thank in newbie problem driving me crazy.

edit: exact code saw @ solution here

sscanf(line, "%99[^\n]", tp); sscanf(line, "%99[^\n]", mcl); sscanf(line, "%99[^\n]", pmt); sscanf(line, "%99[^\n]", amx); 

it didn't work, compiled program crashed changed scanf , didn't crashed variables empty.

since you're using c++ (not c) suggest use standard iostreams library instead of c stdio. in particular, std::ifstream @ reading formatted data file.

#include <fstream> #include <string>  // ...  std::ifstream f("parameters.txt");  int val1; f >> val1;  double val2; f >> val2;  std::string val3; std::getline(f, val3);  // etc 

depending on application, might want error checks well. see http://www.cplusplus.com/reference/iolibrary/ iostream details.