output space after TOK_PPNUM which followed by '+' or '-'

* correct -E output for the case ++ + ++ concatenation
        do this only for expanded from macro string
        and only when tcc_state->output_type == TCC_OUTPUT_PREPROCESS
This commit is contained in:
seyko
2016-05-01 05:43:57 +03:00
parent 256078933c
commit a1c139063b
9 changed files with 114 additions and 9 deletions

53
tccpp.c
View File

@ -48,6 +48,7 @@ static TokenSym *hash_ident[TOK_HASH_SIZE];
static char token_buf[STRING_MAX_SIZE + 1];
static CString cstr_buf;
static TokenString tokstr_buf;
static TokenString tokstr_buf2;
static unsigned char isidnum_table[256 - CH_EOF];
/* isidnum_table flags: */
#define IS_SPC 1
@ -3539,10 +3540,51 @@ ST_FUNC void next(void)
/* if reading from file, try to substitute macros */
s = define_find(tok);
if (s) {
Sym *nested_list = NULL;
tokstr_buf.len = 0;
nested_list = NULL;
macro_subst_tok(&tokstr_buf, &nested_list, s, 1);
if (tcc_state->output_type == TCC_OUTPUT_PREPROCESS)
{
int t = 0;
Sym *nested_list = NULL;
tokstr_buf2.len = 0;
macro_subst_tok(&tokstr_buf2, &nested_list, s, 1);
next_nomacro_spc();
if (tok >= TOK_IDENT) {
s = define_find(tok);
if (s) {
nested_list = NULL;
macro_subst_tok(&tokstr_buf2, &nested_list, s, 1);
} else
tok_str_add_tok(&tokstr_buf2);
} else
tok_str_add_tok(&tokstr_buf2);
{
const int *str = tokstr_buf2.str;
const int *str1 = tokstr_buf2.str + tokstr_buf2.len;
int tok = 0;
CValue cval;
tokstr_buf.len = 0;
while (str < str1) {
if (tok != TOK_LINENUM)
t = tok;
TOK_GET(&tok, &str, &cval);
if ((t == TOK_PPNUM) && ((tok == '+') || (tok == '-'))) {
tok_str_add(&tokstr_buf, ' ');
tok_str_add2(&tokstr_buf, tok, &cval);
} else
if ((t == TOK_INC || (t == TOK_DEC)) && ((tok == '+') || (tok == '-'))) {
tok_str_add(&tokstr_buf, tok);
tok_str_add(&tokstr_buf, ' ');
} else
tok_str_add2(&tokstr_buf, tok, &cval);
}
}
}
else {
Sym *nested_list = NULL;
tokstr_buf.len = 0;
macro_subst_tok(&tokstr_buf, &nested_list, s, 1);
}
tok_str_add(&tokstr_buf, 0);
begin_macro(&tokstr_buf, 2);
goto redo;
@ -3617,6 +3659,8 @@ ST_FUNC void preprocess_new(void)
cstr_realloc(&cstr_buf, STRING_MAX_SIZE);
tok_str_new(&tokstr_buf);
tok_str_realloc(&tokstr_buf, TOKSTR_MAX_SIZE);
tok_str_new(&tokstr_buf2);
tok_str_realloc(&tokstr_buf2, TOKSTR_MAX_SIZE);
tok_ident = TOK_IDENT;
p = tcc_keywords;
@ -3655,6 +3699,7 @@ ST_FUNC void preprocess_delete(void)
cstr_free(&tokcstr);
cstr_free(&cstr_buf);
tok_str_free(tokstr_buf.str);
tok_str_free(tokstr_buf2.str);
/* free allocators */
tal_delete(toksym_alloc);