std::uppercase, std::nouppercase
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uppercasenouppercase
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Defined in header
<ios>
std::ios_base & uppercase( std::ios_base & str );
(1)
std::ios_base & nouppercase( std::ios_base & str );
(2)
Enables the use of uppercase characters in floating-point and hexadecimal integer output. Has no effect on input.
1) Enables the
uppercase flag in the stream str as if by calling str.setf(std::ios_base::uppercase ).2) Disables the
uppercase flag in the stream str as if by calling str.unsetf(std::ios_base::uppercase ).This is an I/O manipulator, it may be called with an expression such as out << std::uppercase for any out of type std::basic_ostream or with an expression such as in >> std::uppercase 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 << std::hex << std::showbase << "0x2a with uppercase: " << std::uppercase << 0x2a << '\n' << "0x2a with nouppercase: " << std::nouppercase << 0x2a << '\n' << "1e-10 with uppercase: " << std::uppercase << 1e-10 << '\n' << "1e-10 with nouppercase: " << std::nouppercase << 1e-10 << '\n'; }
Output:
0x2a with uppercase: 0X2A 0x2a with nouppercase: 0x2a 1e-10 with uppercase: 1E-10 1e-10 with nouppercase: 1e-10