From 795fe5844c4e976715d2397937fec41432d7881a Mon Sep 17 00:00:00 2001
From: yuyi <yuyi98@163.com>
Date: Fri, 11 Mar 2022 23:00:57 +0800
Subject: [PATCH] strconv: fix strconv.v_printf() (#13716)

---
 vlib/strconv/vprintf.c.v                |  2 +-
 vlib/v/tests/inout/strconv_v_printf.out | 10 +++++++
 vlib/v/tests/inout/strconv_v_printf.vv  | 40 +++++++++++++++++++++++++
 3 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 vlib/v/tests/inout/strconv_v_printf.out
 create mode 100644 vlib/v/tests/inout/strconv_v_printf.vv

diff --git a/vlib/strconv/vprintf.c.v b/vlib/strconv/vprintf.c.v
index 095fe2d78d..0f7c4d8577 100644
--- a/vlib/strconv/vprintf.c.v
+++ b/vlib/strconv/vprintf.c.v
@@ -23,7 +23,7 @@ enum Char_parse_state {
 }
 
 pub fn v_printf(str string, pt ...voidptr) {
-	print(v_sprintf(str, pt))
+	print(v_sprintf(str, ...pt))
 }
 
 pub fn v_sprintf(str string, pt ...voidptr) string {
diff --git a/vlib/v/tests/inout/strconv_v_printf.out b/vlib/v/tests/inout/strconv_v_printf.out
new file mode 100644
index 0000000000..fbce98c4fb
--- /dev/null
+++ b/vlib/v/tests/inout/strconv_v_printf.out
@@ -0,0 +1,10 @@
+  .  2  3  .  5  .  7  .  .  . 11  . 13  .  .  . 17  . 19  .iter: 20
+  .  . 23  .  .  .  .  . 29  . 31  .  .  .  .  . 37  .  .  .iter: 40
+ 41  . 43  .  .  . 47  .  .  .  .  . 53  .  .  .  .  . 59  .iter: 60
+ 61  .  .  .  .  . 67  .  .  . 71  . 73  .  .  .  .  . 79  .iter: 80
+  .  . 83  .  .  .  .  . 89  .  .  .  .  .  .  . 97  .  .  .iter: 100
+101  .103  .  .  .107  .109  .  .  .113  .  .  .  .  .  .  .iter: 120
+  .  .  .  .  .  .127  .  .  .131  .  .  .  .  .137  .139  .iter: 140
+  .  .  .  .  .  .  .  .149  .151  .  .  .  .  .157  .  .  .iter: 160
+  .  .163  .  .  .167  .  .  .  .  .173  .  .  .  .  .179  .iter: 180
+181  .  .  .  .  .  .  .  .  .191  .193  .  .  .197  .199  .iter: 200
diff --git a/vlib/v/tests/inout/strconv_v_printf.vv b/vlib/v/tests/inout/strconv_v_printf.vv
new file mode 100644
index 0000000000..d7e5cc1bb8
--- /dev/null
+++ b/vlib/v/tests/inout/strconv_v_printf.vv
@@ -0,0 +1,40 @@
+import strconv
+
+const limit = 201
+
+fn main() {
+	// sieve
+	mut c := [limit]bool{}
+	c[1] = true
+
+	mut p := 2
+	for {
+		p2 := p * p
+		if p2 >= limit {
+			break
+		}
+
+		for i := p2; i < limit; i += p {
+			c[i] = true
+		}
+
+		for {
+			p++
+			if !c[p] {
+				break
+			}
+		}
+	}
+
+	// sieve complete.  now print a representation.
+	for n in 1 .. limit {
+		if c[n] {
+			print('  .')
+		} else {
+			strconv.v_printf('%3d', n)
+		}
+		if n % 20 == 0 {
+			println('iter: $n')
+		}
+	}
+}