From 5a0101856b66bdeb542ad8ead5173fbafa81cfab Mon Sep 17 00:00:00 2001
From: matthias <uso.cosmo.ray@gmail.com>
Date: Sun, 28 Apr 2019 01:07:01 +0200
Subject: [PATCH] add C11 _Static_assert support

---
 tccgen.c | 13 +++++++++++++
 tcctok.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/tccgen.c b/tccgen.c
index 2c411b6..ebb4f7f 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -7445,6 +7445,19 @@ static int decl0(int l, int is_for_loop_init, Sym *func_sym)
     AttributeDef ad, adbase;
 
     while (1) {
+	if (tok == TOK_STATIC_ASSERT) {
+	    int c;
+
+	    next();
+	    skip('(');
+	    c = expr_const();
+	    skip(',');
+	    if (c == 0)
+		tcc_error("%s", get_tok_str(tok, &tokc));
+	    next();
+	    skip(')');
+	    continue;
+	}
         if (!parse_btype(&btype, &adbase)) {
             if (is_for_loop_init)
                 return 0;
diff --git a/tcctok.h b/tcctok.h
index a3befd6..5ab235f 100644
--- a/tcctok.h
+++ b/tcctok.h
@@ -38,6 +38,7 @@
      DEF(TOK_EXTENSION, "__extension__") /* gcc keyword */
 
      DEF(TOK_GENERIC, "_Generic")
+     DEF(TOK_STATIC_ASSERT, "_Static_assert")
 
      DEF(TOK_FLOAT, "float")
      DEF(TOK_DOUBLE, "double")