I'm experimenting with std::setprecision, is good to say how many decimals you want to show but... I have a problem. I realized that also affects other variables and not
When we use the Linux or UNIX operating system, we need to include “unistd.h” header file in our program to use thesleep ()function. While using the Windows operating system, we have to include “Windows.h” header to use the sleep () function. So in order to write a cross-platfor...
All these cases are shown in the following example code.#include <cmath> #include <iomanip> #include <iostream> using std::cout; using std::endl; int main() { cout << "exp(1) = e¹ = " << std::setprecision(16) << std::exp(1) << '\n' << "exp(10) = " << std::...
If you need more control over the precision of the converted string, you can combinestd::to_stringwith the<iomanip>header to set the desired precision using thestd::setprecisionmanipulator. Here’s an example of how to do that: #include<iomanip>#include<iostream>#include<string>using std::co...
How unordered_map function work in C++? In unordered_map, the elements are not sorted initially based on any particular order with respect to key values or mapped values. Instead, it is but structured into buckets subject to the hash values to permit fast access to distinct items directly by...
The parameters implemented in the above syntax are RandomIt, first and last. Here the first and last are the range between whose sorting is to be done; the first notifies the first element of the list, while the last denotes the last element. ...
double q=acos(1.0*sin(a)*sin(e)+cos(a)*cos(e)*cos(b-f));//this is where the degrees have to be converted to radians double d=r*q; cout << fixed << setprecision(2); cout <<"The distance between: (" <<a <<", " <<b <<") and (" <<e <<", " <<f <<") is ...
Log4cplusneed to be initialized as follow: #include<log4cplus/logger.h>#include<log4cplus/configurator.h>{::log4cplus::initialize(); ::log4cplus::PropertyConfigurator::doConfigure("log4cplus_configure.ini");} This code should be put in the head of the main() or in your initializatio...
to hold some information for the features fieldUserDefined = new Field(); fieldEdit = (IFieldEdit)fieldUserDefined; fieldEdit.setName("Avg_income"); fieldEdit.setAliasName("Average income for 1999-2000"); fieldEdit.setEditable(true); fieldEdit.setIsNullable(false); fieldEdit.setPrecision(2)...
cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n'); // <--- Requires header file <limits>.std::cout <<"\n\n Press Enter to continue: "; std::cin.get();return1; } std::cout << std::fixed << std::setprecision(2);// <--- Only needs done once.while(myFile...