On Sun, Nov 06, 2016 at 09:09:04AM +0000, Debian Bug Tracking System wrote: [...] > > As just discussed in http://bugs.debian.org/826596 it seems the output > is printed as escaped ascii codes when the locale (on the receiving side) > does not consider a character printable. >
Not the locale, but the "isprint()" function, as the argument is an integer (ch) from a char variable (*p) which is treated as an signed character (and thus as a negative integer for 8 bit characters).. From the manual of "isprint": "These functions check whether c, which must have the value of an unsigned char or EOF, ...". When the code is compiled with "-funsigned-char" the output is correct. This is a fundamental flaw in the cc-standard. The program "less" (Debian bug #594260 (-i)) has also shown it. -- Bjarni I. Gislason
