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| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-03-19 21:57:58 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1997-03-19 21:57:58 +0000 |
| commit | e4ed3356c157a3d2290afb258abfe90444013644 (patch) | |
| tree | 64dafb5e444a68e38b4bd78d253bb766a26f320f /gcc/cexp.y | |
| parent | 9ca5ce341e8fdc872a548eacf2f7f7c94ccb4a38 (diff) | |
| download | gcc-e4ed3356c157a3d2290afb258abfe90444013644.tar.gz | |
(parse_number, yylex), cccp.c (rescan), cpplib.c
(cpp_get_token): Unless -lang-c89 is specified, allow C9X-style
hexadecimal floating-point numbers as preprocessor numbers.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@13746 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cexp.y')
| -rw-r--r-- | gcc/cexp.y | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/cexp.y b/gcc/cexp.y index 18887511fab..2d2d34f8b28 100644 --- a/gcc/cexp.y +++ b/gcc/cexp.y @@ -161,6 +161,9 @@ extern int pedantic; /* Flag for -traditional. */ extern int traditional; +/* Flag for -lang-c89. */ +extern int c89; + #ifndef CHAR_TYPE_SIZE #define CHAR_TYPE_SIZE BITS_PER_UNIT #endif @@ -531,7 +534,7 @@ parse_number (olen) yylval.integer.signedp = UNSIGNED; } else { - if (c == '.' || c == 'e' || c == 'E') + if (c == '.' || c == 'e' || c == 'E' || c == 'p' || c == 'P') yyerror ("Floating point numbers not allowed in #if expressions"); else { char *buf = (char *) alloca (p - lexptr + 40); @@ -834,7 +837,9 @@ yylex () for (namelen = 1; ; namelen++) { int d = tokstart[namelen]; if (! ((is_idchar[d] || d == '.') - || ((d == '-' || d == '+') && (c == 'e' || c == 'E') + || ((d == '-' || d == '+') + && (c == 'e' || c == 'E' + || ((c == 'p' || c == 'P') && ! c89)) && ! traditional))) break; c = d; |