https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62160
Bug ID: 62160
Summary: std::uppercase does not work for std::hex output
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jj at chaosbits dot net
Created attachment 33339
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33339&action=edit
pre-processed version of test.cc
Using std::uppercase should cause the use of uppercase characters in
hexadecimal integer output, but it does not seem to do so when that integer is
a pointer:
[jj@jj ~]$ g++ --version
g++ (GCC) 4.8.2 20140120 (Red Hat 4.8.2-15)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[jj@jj ~]$ cat test.cc
#include <iostream>
int main() {
int* p = reinterpret_cast<int*>(42);
int i = 42;
std::cout << std::hex << std::uppercase << p << std::endl;
std::cout << std::hex << std::uppercase << i << std::endl;
}
[jj@jj ~]$ g++ -std=c++11 test.cc
[jj@jj ~]$ ./a.out
0x2a
2A
As can be seen above, the output is clearly not uppercase in the pointer case
(although as far as I know; pointers are integers).
This looks like a bug to me, but maybe I'm just doing something exceptionally
stupid...
