When the `%La` specifier is used in `printf()` to format
the C99 hexdecimal floating point value `0x5p-80l`,
a wrong result is generated, as shown in this example:
E:\Desktop>cat test.c
extern int __mingw_printf(const char *, ...);
int main(){
__mingw_printf("%La\n", 0x5p-80l);
}
E:\Desktop>gcc test.c -std=c99
E:\Desktop>a.exe
0x0p-141
Removing the `__mingw_` prefix and testing the same program
on Linux gives the correct result:
lh_mouse@lhmouse-dev:~$ uname -a
Linux lhmouse-dev 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2+deb8u3
(2016-07-02) x86_64 GNU/Linux
lh_mouse@lhmouse-dev:~$ gcc test.c -std=c99
lh_mouse@lhmouse-dev:~$ ./a.out
0xap-81
Is this a bug in `printf()`?
--------------
Best regards,
lh_mouse
2016-09-09
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