To my best knowledge, the \xNN escape sequence
should expect exactly two hexadecimal digits, but
the following program shows that GCC is too greedy:
#include <stdio.h>
int main() {
static const char t[] = "\x05Data";
for(int i = 0; i != sizeof(t); ++i) {
fprintf(stderr, "%02x ", (unsigned) t[i]);
}
fprintf(stderr, "\n");
}
produces:
ffffffda 74 61 00
instead of:
05 44 61 74 61 00
i.e. the "Da" from "Data" is also used as a part of the hexadecimal escape
sequence.
--
Summary: Escape sequence parsing is broken
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: piotr dot wyderski at gmail dot com
GCC host triplet: Cygwin/GCC-4.5-20090601
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42459
