I/O manipulators | ||||
Print functions(C++23) | ||||
C-style I/O | ||||
Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
Streams | ||||
Abstractions | ||||
File I/O | ||||
String I/O | ||||
Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
Synchronized Output | ||||
(C++20) | ||||
Types | ||||
Error category interface | ||||
(C++11) | ||||
(C++11) |
Floating-point formatting | |||||||||||||||||||||||||||||||
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Integer formatting | |||||||||||||||||||||||||||||||
Boolean formatting | |||||||||||||||||||||||||||||||
Field width and fill control | |||||||||||||||||||||||||||||||
Other formatting | |||||||||||||||||||||||||||||||
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Whitespace processing | |||||||||||||||||||||||||||||||
Output flushing | |||||||||||||||||||||||||||||||
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Status flags manipulation | |||||||||||||||||||||||||||||||
Time and money I/O | |||||||||||||||||||||||||||||||
Quoted manipulator | |||||||||||||||||||||||||||||||
(C++14) |
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.
uppercase
flag in the streamstr as if by callingstr.unsetf(std::ios_base::uppercase).This is an I/O manipulator, it may be called with an expression such asout<< std::uppercase for anyout
of typestd::basic_ostream or with an expression such asin>> std::uppercase for anyin
of typestd::basic_istream.
Contents |
str | - | reference to I/O stream |
str (reference to the stream after manipulation).
#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: 0X2A0x2a with nouppercase: 0x2a1e-10 with uppercase: 1E-101e-10 with nouppercase: 1e-10
clears the specified ios_base flags (function)[edit] | |
sets the specifiedios_base flags(function)[edit] |