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| author | Richard Stallman <rms@gnu.org> | 1992-09-24 06:53:13 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1992-09-24 06:53:13 +0000 |
| commit | b70af677f28020e48e4d80a036ad19c25ee8f389 (patch) | |
| tree | a78ff9b2cff0800ef5d7a2a3b88afa65427ab6e2 | |
| parent | 3b647566f77e7f7bac9936132c4d389f69240fea (diff) | |
| download | gcc-b70af677f28020e48e4d80a036ad19c25ee8f389.zip gcc-b70af677f28020e48e4d80a036ad19c25ee8f389.tar.gz gcc-b70af677f28020e48e4d80a036ad19c25ee8f389.tar.bz2 | |
(readescape): New arg ignore_ptr.
(yylex): Pass new arg, handle result that comes back.
From-SVN: r2222
| -rw-r--r-- | gcc/c-lex.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/gcc/c-lex.c b/gcc/c-lex.c index e983773..6bae94e 100644 --- a/gcc/c-lex.c +++ b/gcc/c-lex.c @@ -794,10 +794,11 @@ handle_sysv_pragma (input, c) #define ENDFILE -1 /* token that represents end-of-file */ /* Read an escape sequence, returning its equivalent as a character, - or -1 if it is backslash-newline. */ + or store 1 in *ignore_ptr if it is backslash-newline. */ static int -readescape () +readescape (ignore_ptr) + int *ignore_ptr; { register int c = getc (finput); register int code; @@ -868,7 +869,8 @@ readescape () case '\n': lineno++; - return -1; + *ignore_ptr = 1; + return 0; case 'n': return TARGET_NEWLINE; @@ -1637,8 +1639,9 @@ yylex () if (c == '\\') { - c = readescape (); - if (c < 0) + int ignore = 0; + c = readescape (&ignore); + if (ignore) goto tryagain; if (width < HOST_BITS_PER_INT && (unsigned) c >= (1 << width)) @@ -1735,8 +1738,9 @@ yylex () /* ignore_escape_flag is set for reading the filename in #line. */ if (!ignore_escape_flag && c == '\\') { - c = readescape (); - if (c < 0) + int ignore; + c = readescape (&ignore); + if (ignore) goto skipnewline; if (!wide_flag && TYPE_PRECISION (char_type_node) < HOST_BITS_PER_INT |