harec

commit 34aa3082c18d6e249f2d23404821ee77c6960969
parent 6dc8bc29d8f2ce33f8419093d295162f995b7a54
Author: Sudipto Mallick <smlckz@disroot.org>
Date:   Wed,  7 Jul 2021 13:34:48 +0000

typedef: add special case for NaN and Infinity floating point constants

Signed-off-by: Sudipto Mallick <smlckz@disroot.org>

Diffstat:
M
src/typedef.c
 | 
14
++++++++++++--

1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/typedef.c b/src/typedef.c
@@ -1,6 +1,7 @@
 #include <assert.h>
 #include <ctype.h>
 #include <inttypes.h>
+#include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include "check.h"
@@ -63,9 +64,18 @@ emit_const(const struct expression *expr, FILE *out)
 	case STORAGE_F32:
 	case STORAGE_F64:
 	case STORAGE_FCONST:
-		fprintf(out, "%lf%s", val->fval,
-			storage_to_suffix(expr->result->storage));
+	{
+		const char *suffix = storage_to_suffix(expr->result->storage);
+		if (isnan(val->fval)) {
+			fprintf(out, "0.0%s / 0.0%s", suffix, suffix);
+		} else if (isinf(val->fval)) {
+			fprintf(out, "%s1.0%s / 0.0%s",
+				(val->fval > 0) ? "" : "-", suffix, suffix);
+		} else {
+			fprintf(out, "%lf%s", val->fval, suffix);
+		}
 		break;
+	}
 	case STORAGE_I16:
 	case STORAGE_I32:
 	case STORAGE_I64: