From 6417c31a69ce06f35e00771fd2ecc87dbe48cd7a Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Tue, 24 Feb 2026 14:08:35 +0100
Subject: C23 true and false keywords

---
 c/c.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'c/c.c')

diff --git a/c/c.c b/c/c.c
index d4e0aa6..019fb15 100644
--- a/c/c.c
+++ b/c/c.c
@@ -161,7 +161,7 @@ isexprtok(struct comp *cm)
       static const bool tks[] = {
 #define tk(x) [x] = 1
          tk('+'), tk('-'), tk('*'), tk('&'), tk('~'), tk('!'), tk(TKINC), tk(TKDEC),
-         tk(TKWsizeof), tk(TKW_Alignof), tk(TKWalignof),
+         tk(TKWsizeof), tk(TKW_Alignof), tk(TKWalignof), tk(TKWtrue), tk(TKWfalse),
          tk('('), tk(TKNUMLIT), tk(TKCHRLIT), tk(TKSTRLIT), tk(TKW_Generic)
 #undef tk
       };
@@ -1080,6 +1080,9 @@ Unary:
          error(&tk.span, "bad %s literal %'tk", tk.t == TKNUMLIT ? "number" : "character", &tk);
       ex.ty.t = ty.t ? ty.t : TYINT;
       break;
+   case TKWtrue: case TKWfalse:
+      ex = mkexpr(ENUMLIT, tk.span, mktype(TYBOOL), .u = tk.t == TKWtrue);
+      break;
    case TKSTRLIT:
       ty = mktype(((const char []){TYCHAR, TYSHORT, TYINT})[tk.wide]);
       ex = mkexpr(ESTRLIT, tk.span, mkarrtype(ty, 0, tk.len+1), { .s.p = (void *)tk.s, .s.n = tk.len });
@@ -2312,8 +2315,7 @@ declspec(struct declstate *st, struct comp *cm, struct span *pspan)
       case TKWunsigned:
          arith |= KUNSIGNED;
          break;
-      case TKW_Bool:
-      case TKWbool:
+      case TKW_Bool: case TKWbool:
          if (arith & KBOOL) goto DupArith;
          arith |= KBOOL;
          break;
-- 
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