From 170a191b2bb63e43f710b1acdc1e36f9370ed033 Mon Sep 17 00:00:00 2001
From: GrieferAtWork <GrieferAtWork@users.noreply.github.com>
Date: Sat, 28 Dec 2024 15:56:13 +0100
Subject: [PATCH] Fix leading 0es missing in fractional floats

---
 src/deemon/objects/float-print.c.inl | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/src/deemon/objects/float-print.c.inl b/src/deemon/objects/float-print.c.inl
index a05109d5b..163a93a51 100644
--- a/src/deemon/objects/float-print.c.inl
+++ b/src/deemon/objects/float-print.c.inl
@@ -60,6 +60,7 @@ DeeFloat_Print(LOCAL_float_t value, dformatprinter printer, void *arg,
 	bool is_negative;
 	unsigned int max_prec, min_prec;
 	uintmax_t whole, frac;
+	unsigned int frac_digits;
 
 	/* Check for INF */
 #ifdef CONFIG_HAVE_isinf
@@ -104,6 +105,7 @@ DeeFloat_Print(LOCAL_float_t value, dformatprinter printer, void *arg,
 	tmpval = (value - whole) * pow10[max_prec];
 	frac   = (uintmax_t)tmpval;
 	diff   = tmpval - frac;
+	frac_digits = max_prec;
 
 	/* Round to the closest fraction. */
 	if (diff > 0.5) {
@@ -137,8 +139,10 @@ DeeFloat_Print(LOCAL_float_t value, dformatprinter printer, void *arg,
 
 	/* Trim unused fraction digits. (should precision or
 	 * width require them, they'll be re-added later) */
-	while (frac && (frac % 10) == 0)
+	while (frac_digits && (frac % 10) == 0) {
 		frac /= 10;
+		--frac_digits;
+	}
 	total_len = COMPILER_LENOF(buf) - len;
 	if ((flags & (DEEFLOAT_PRINT_FWIDTH | DEEFLOAT_PRINT_FLJUST)) ==
 	    /*    */ (DEEFLOAT_PRINT_FWIDTH | DEEFLOAT_PRINT_FLJUST)) {
@@ -148,16 +152,9 @@ DeeFloat_Print(LOCAL_float_t value, dformatprinter printer, void *arg,
 		if (max_prec != 0) {
 			unsigned int temp_min;
 			temp_min = min_prec;
-			whole    = frac;
+			if (temp_min < frac_digits)
+				temp_min = frac_digits;
 			++total_len; /* . */
-			for (;;) {
-				if (temp_min)
-					--temp_min;
-				++total_len;
-				whole /= 10;
-				if (!whole)
-					break;
-			}
 			total_len += temp_min;
 		}
 		if (width <= total_len)
@@ -199,18 +196,16 @@ do_float_normal_width:
 	result += temp;
 
 	/* Fractional part. */
-	if (max_prec != 0) {
+	if (frac_digits != 0) {
 		len = COMPILER_LENOF(buf);
-		for (;;) {
+		do {
 			if (min_prec)
 				--min_prec;
 			buf[--len] = (char)(48 + (frac % 10));
 			frac /= 10;
-			if (!frac)
-				break;
-		}
+		} while (--frac_digits);
 		buf[--len] = '.';
-		temp       = (*printer)(arg, buf + len, COMPILER_LENOF(buf) - len);
+		temp = (*printer)(arg, buf + len, COMPILER_LENOF(buf) - len);
 		if unlikely(temp < 0)
 			goto err;
 		result += temp;