Set precision for float number output : float output « Data Types « C++ Tutorial

1.	Language Basics
2.	Data Types
3.	Operators statements
4.	Array
5.	Development
6.	Exceptions
7.	Function
8.	Structure
9.	Class
10.	Operator Overloading
11.	Pointer
12.	File Stream
13.	template
14.	STL Introduction
15.	string
16.	vector
17.	list
18.	bitset
19.	set multiset
20.	valarray
21.	queue stack
22.	deque
23.	map multimap
24.	STL Algorithms Modifying sequence operations
25.	STL Algorithms Non modifying sequence operations
26.	STL Algorithms Binary search
27.	STL Algorithms Sorting
28.	STL Algorithms Merge
29.	STL Algorithms Min Max
30.	STL Algorithms Iterator
31.	STL Algorithms Heap
32.	STL Algorithms Helper

C / ANSI-C

C Tutorial

C++

Visual C++ .NET

C++ Tutorial » Data Types » float output

2.11.1.Set precision for float number output

#include <iostream>

using namespace std; 

int main(void)

{

   int i;

   float value = 1.2345;



   for (i = 0; i < 4; i++){

      cout.precision(i);

      cout << value << endl;

   }

}

2.11.float output
	2.11.1.	Set precision for float number output
	2.11.2.	Set and clear the showpoint flag
	2.11.3.	Controlling the printing of trailing zeros and decimal points for floating-point values.
	2.11.4.	Read and output float
	2.11.5.	pad the field width with spaces and set the internal and showpos flags

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.