Defined in header <ios> | ||
---|---|---|
std::ios_base& showpoint( std::ios_base& str ); | (1) | |
std::ios_base& noshowpoint( std::ios_base& str ); | (2) |
Enables or disables the unconditional inclusion of the decimal point character in floating-point output. Has no effect on input.
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
.
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
.
str | - | reference to I/O stream |
str
(reference to the stream after manipulation).
#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
clears the specified ios_base flags (function) |
|
sets the specified ios_base flags (function) |
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