std::showpoint, std::noshowpoint
From cppreference.com
| Defined in header
<ios>
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| std::ios_base& showpoint( std::ios_base& str );
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(1) | |
| std::ios_base& noshowpoint( std::ios_base& str );
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(2) | |
Enables or disables the unconditional inclusion of the decimal point character in floating-point output. Has no effect on input.
1) enables the showpoint flag in the stream str as if by calling str.setf(std::ios_base::showpoint)
2) disables the showpoint flag in the stream str as if by calling str.unsetf(std::ios_base::showpoint)
This is an I/O manipulator, it may be called with an expression such as out << std::showpoint for any out of type std::basic_ostream or with an expression such as in >> std::showpoint for any in of type std::basic_istream.
Contents |
[edit] Parameters
| str | - | reference to I/O stream |
[edit] Return value
str (reference to the stream after manipulation)
[edit] Example
Run this code
#include <iostream> int main() { std::cout << "1.0 with showpoint: " << std::showpoint << 1.0 << '\n' << "1.0 with noshowpoint: " << std::noshowpoint << 1.0 << '\n'; }
Output:
1.0 with showpoint: 1.00000 1.0 with noshowpoint: 1
[edit] See also
| clears the specified ios_base flags (function) |
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| sets the specified ios_base flags (function) |