Enables or disables the unconditional inclusion of the decimal point character in floating-point output. Has no effect on input.
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.
The character to use as decimal point character is determined by the numpunct facet of the locale imbued in the stream at the time of output, as described in std::num_put::put.
[edit] Parameters str - reference to I/O stream [edit] Return valuestr (reference to the stream after manipulation).
[edit] Example#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
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