From 4c8c400ddf0d6de54b0ee557836a934b4025d21f Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 24 Apr 2025 15:29:50 +0200 Subject: c: Allow $@` in GNU23/GNU2Y raw string delimiters [PR110343] Aaron mentioned in the PR that late in C23 N3124 was adopted and $@` are now part of basic character set. The paper has been implemented in GCC from what I can see, but we should allow for GNU23/2Y $@` in raw string delimiters as well, like they are allowed for C++26, because the delimiters can contain anything from basic character set but space, ()\, tab, form-feed, newline and backspace. 2025-04-24 Jakub Jelinek PR c++/110343 * lex.cc (lex_raw_string): For C allow $@` in raw string delimiters if CPP_OPTION (pfile, low_ucns) i.e. for C23 and later. * gcc.dg/raw-string-1.c: New test. --- gcc/testsuite/gcc.dg/raw-string-1.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/raw-string-1.c (limited to 'gcc') diff --git a/gcc/testsuite/gcc.dg/raw-string-1.c b/gcc/testsuite/gcc.dg/raw-string-1.c new file mode 100644 index 0000000..77d6145 --- /dev/null +++ b/gcc/testsuite/gcc.dg/raw-string-1.c @@ -0,0 +1,25 @@ +/* PR c++/110343 */ +/* { dg-do compile } */ +/* { dg-options "-std=gnu23" } */ + +const void *s0 = R"0123456789abcdefg()0123456789abcdefg" 0; + /* { dg-error "raw string delimiter longer" "longer" { target *-*-* } .-1 } */ + /* { dg-error "stray" "stray" { target *-*-* } .-2 } */ +const void *s1 = R" () " 0; + /* { dg-error "invalid character" "invalid" { target *-*-* } .-1 } */ + /* { dg-error "stray" "stray" { target *-*-* } .-2 } */ +const void *s2 = R" () " 0; + /* { dg-error "invalid character" "invalid" { target *-*-* } .-1 } */ + /* { dg-error "stray" "stray" { target *-*-* } .-2 } */ +const void *s3 = R")())" 0; + /* { dg-error "invalid character" "invalid" { target *-*-* } .-1 } */ + /* { dg-error "stray" "stray" { target *-*-* } .-2 } */ +const char *s4 = R"@()@"; +const char *s5 = R"$()$"; +const char *s6 = R"`()`"; +const void *s7 = R"\u0040()\u0040" 0; + /* { dg-error "invalid character" "invalid" { target *-*-* } .-1 } */ + /* { dg-error "stray" "stray" { target *-*-* } .-2 } */ +const char *s8 = R"`@$$@`@`$()`@$$@`@`$"; + +int main () {} -- cgit v1.1