diff options
| author | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-02-21 21:25:39 +0000 |
|---|---|---|
| committer | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-02-21 21:25:39 +0000 |
| commit | 7811eab5b74ba7806ce56ff8a25422e1fe99a3dd (patch) | |
| tree | 7886f1b6dbd2bde455eb82ab0f653f93286218f7 /libcpp | |
| parent | 71cca45998b9d3a6b7e187b6d0e1e1ad94b36b5e (diff) | |
libcpp:
* lex.c (lex_string): Return a CPP_LESS token for missing '>' in a
header name.
(_cpp_lex_direct): Handle this.
gcc/testsuite:
* gcc.dg/cpp/include4.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@144361 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/ChangeLog | 6 | ||||
| -rw-r--r-- | libcpp/lex.c | 15 |
2 files changed, 19 insertions, 2 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index f84aab39833..d86092b677c 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,9 @@ +2009-02-21 Joseph Myers <joseph@codesourcery.com> + + * lex.c (lex_string): Return a CPP_LESS token for missing '>' in a + header name. + (_cpp_lex_direct): Handle this. + 2009-02-15 Richard Guenther <rguenther@suse.de> Revert last change. diff --git a/libcpp/lex.c b/libcpp/lex.c index 96d1a99e283..452e8eafce5 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -613,7 +613,9 @@ create_literal (cpp_reader *pfile, cpp_token *token, const uchar *base, /* Lexes a string, character constant, or angle-bracketed header file name. The stored string contains the spelling, including opening quote and leading any leading 'L', 'u' or 'U'. It returns the type - of the literal, or CPP_OTHER if it was not properly terminated. + of the literal, or CPP_OTHER if it was not properly terminated, or + CPP_LESS for an unterminated header name which must be relexed as + normal tokens. The spelling is NUL-terminated, but it is not guaranteed that this is the first NUL since embedded NULs are preserved. */ @@ -652,6 +654,14 @@ lex_string (cpp_reader *pfile, cpp_token *token, const uchar *base) else if (c == '\n') { cur--; + /* Unmatched quotes always yield undefined behavior, but + greedy lexing means that what appears to be an unterminated + header name may actually be a legitimate sequence of tokens. */ + if (terminator == '>') + { + token->type = CPP_LESS; + return; + } type = CPP_OTHER; break; } @@ -1181,7 +1191,8 @@ _cpp_lex_direct (cpp_reader *pfile) if (pfile->state.angled_headers) { lex_string (pfile, result, buffer->cur - 1); - break; + if (result->type != CPP_LESS) + break; } result->type = CPP_LESS; |