From 62beea506bd1a5c688e7b88457408411c8272635 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Mon, 7 May 2012 18:53:28 +0000
Subject: [PATCH] compiler: fix an ICE when parsing 0xdie, reject token 0x123i.
The lexer used to incorrectly accept a token like 0x123i
and interpreted it as 123i. It also used to die when encountering
0xdie.
From-SVN: r187266
---
gcc/go/gofrontend/lex.cc | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/go/gofrontend/lex.cc b/gcc/go/gofrontend/lex.cc
index 53618fc72cad..5b7ce6869e6c 100644
--- a/gcc/go/gofrontend/lex.cc
+++ b/gcc/go/gofrontend/lex.cc
@@ -1012,7 +1012,9 @@ Lex::gather_number()
}
}
- if (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend))
+ // A partial token that looks like an octal literal might actually be the
+ // beginning of a floating-point or imaginary literal.
+ if (base == 16 || (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend)))
{
std::string s(pnum, p - pnum);
mpz_t val;
--
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