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tccpp: Implement __BASE_FILE__ macro

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Like __FILE__ but always refers to the command line file name also
from inside headers.
This commit is contained in:
Michael Matz
2016-07-13 15:37:36 +02:00
parent 8a1a2a6033
commit b7e0b693a6
3 changed files with 22 additions and 0 deletions
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6
tccpp.c
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@ -3465,6 +3465,7 @@ ST_INLN void unget_tok(int last_tok)
ST_FUNC void preprocess_start(TCCState *s1)
{
char *buf;
s1->include_stack_ptr = s1->include_stack;
/* XXX: move that before to avoid having to initialize
file->ifdef_stack_ptr ? */
@ -3480,6 +3481,11 @@ ST_FUNC void preprocess_start(TCCState *s1)
s1->dollars_in_identifiers ? IS_ID : 0;
isidnum_table['.' - CH_EOF] =
(parse_flags & PARSE_FLAG_ASM_FILE) ? IS_ID : 0;
buf = tcc_malloc(3 + strlen(file->filename));
sprintf(buf, "\"%s\"", file->filename);
tcc_undefine_symbol(s1, "__BASE_FILE__");
tcc_define_symbol(s1, "__BASE_FILE__", buf);
tcc_free(buf);
if (s1->nb_cmd_include_files) {
CString cstr;
int i;