diff options
Diffstat (limited to 'gcc/cpplib.c')
| -rw-r--r-- | gcc/cpplib.c | 54 |
1 files changed, 38 insertions, 16 deletions
diff --git a/gcc/cpplib.c b/gcc/cpplib.c index 2718b08..ab2e203 100644 --- a/gcc/cpplib.c +++ b/gcc/cpplib.c @@ -731,15 +731,42 @@ cpp_scan_buffer (pfile) cpp_reader *pfile; { cpp_buffer *buffer = CPP_BUFFER (pfile); - for (;;) + enum cpp_token token; + if (CPP_OPTIONS (pfile)->no_output) { - enum cpp_token token = cpp_get_token (pfile); - if (token == CPP_EOF) /* Should not happen ... */ - break; - if (token == CPP_POP && CPP_BUFFER (pfile) == buffer) + long old_written = CPP_WRITTEN (pfile); + /* In no-output mode, we can ignore everything but directives. */ + for (;;) { - cpp_pop_buffer (pfile); - break; + if (! pfile->only_seen_white) + skip_rest_of_line (pfile); + token = cpp_get_token (pfile); + if (token == CPP_EOF) /* Should not happen ... */ + break; + if (token == CPP_POP && CPP_BUFFER (pfile) == buffer) + { + if (CPP_PREV_BUFFER (CPP_BUFFER (pfile)) + != CPP_NULL_BUFFER (pfile)) + cpp_pop_buffer (pfile); + break; + } + } + CPP_SET_WRITTEN (pfile, old_written); + } + else + { + for (;;) + { + token = cpp_get_token (pfile); + if (token == CPP_EOF) /* Should not happen ... */ + break; + if (token == CPP_POP && CPP_BUFFER (pfile) == buffer) + { + if (CPP_PREV_BUFFER (CPP_BUFFER (pfile)) + != CPP_NULL_BUFFER (pfile)) + cpp_pop_buffer (pfile); + break; + } } } } @@ -760,13 +787,8 @@ cpp_expand_to_buffer (pfile, buf, length) int length; { register cpp_buffer *ip; -#if 0 - cpp_buffer obuf; -#endif U_CHAR *buf1; -#if 0 - int odepth = indepth; -#endif + int save_no_output; if (length < 0) { @@ -784,12 +806,12 @@ cpp_expand_to_buffer (pfile, buf, length) if (ip == NULL) return; ip->has_escapes = 1; -#if 0 - ip->lineno = obuf.lineno = 1; -#endif /* Scan the input, create the output. */ + save_no_output = CPP_OPTIONS (pfile)->no_output; + CPP_OPTIONS (pfile)->no_output = 0; cpp_scan_buffer (pfile); + CPP_OPTIONS (pfile)->no_output = save_no_output; CPP_NUL_TERMINATE (pfile); } |