ios manipulators showpoint() function in C++
The showpoint() method of stream manipulators in C++ is used to set the showpoint format flag for the specified str stream. This flag always displays the floating point values along with their decimal values.
Syntax:
ios_base& showpoint (ios_base& str)
Parameters: This method accepts str as a parameter which is the stream for which the format flag is affected.
Return Value: This method returns the stream str with showpoint format flag set.
Example 1:
// C++ code to demonstrate // the working of showpoint() function #include <iostream> using namespace std; int main() { // Initializing the floating values double n1 = 10; double n2 = 20.0; cout.precision(5); // Using showpoint() cout << "showpoint flag: " << showpoint << n1 << endl << n2 << endl; return 0; } |
showpoint flag: 10.000 20.000
Example 2:
// C++ code to demonstrate // the working of showpoint() function #include <iostream> using namespace std; int main() { // Initializing the floating values double n3 = 30.1223; cout.precision(5); // Using showpoint() cout << "showpoint flag: " << showpoint << n3 << endl; return 0; } |
showpoint flag: 30.122
Reference: http://www.cplusplus.com/reference/ios/showpoint/
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