From: David Zafman <dzafman@redhat.com>
Date: Fri, 9 Aug 2019 01:06:43 +0000 (-0700)
Subject: common: Add support routines to generate strings for fixed point
X-Git-Tag: v15.1.0~1664^2~3
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=8ac1562b4988fc3d52f92f15eb58075de0bcf27e;p=ceph.git

common: Add support routines to generate strings for fixed point

Signed-off-by: David Zafman <dzafman@redhat.com>
---

diff --git a/src/common/Formatter.cc b/src/common/Formatter.cc
index 746a6c025fa5..ba29b62d10ac 100644
--- a/src/common/Formatter.cc
+++ b/src/common/Formatter.cc
@@ -25,6 +25,32 @@
 // -----------------------
 namespace ceph {
 
+std::string
+fixed_u_to_string(uint64_t num, int scale)
+{
+	std::ostringstream t;
+
+	t.fill('0');
+	t.width(scale + 1);
+	t << num;
+	int len = t.str().size();
+	return t.str().substr(0,len - scale) + "." + t.str().substr(len - scale);
+}
+
+std::string
+fixed_to_string(int64_t num, int scale)
+{
+	std::ostringstream t;
+	bool neg = num < 0;
+	if (neg) num = -num;
+
+	t.fill('0');
+	t.width(scale + 1);
+	t << num;
+	int len = t.str().size();
+	return (neg ? "-" : "") + t.str().substr(0,len - scale) + "." + t.str().substr(len - scale);
+}
+
 /*
  * FormatterAttrs(const char *attr, ...)
  *
diff --git a/src/common/Formatter.h b/src/common/Formatter.h
index 1363f1f67687..c4cdd552373b 100644
--- a/src/common/Formatter.h
+++ b/src/common/Formatter.h
@@ -299,5 +299,7 @@ namespace ceph {
     std::vector< std::string > m_column_name;
   };
 
+  std::string fixed_to_string(int64_t num, int scale);
+  std::string fixed_u_to_string(uint64_t num, int scale);
 }
 #endif