From 17ae7486123aac78bb4abc543ea233fc33f369ba Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 18 Jul 2026 07:17:27 +0000
Subject: [PATCH 1/3] Initial plan


From d721896e87930f1dfc9e25978e432f85ae79537e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 18 Jul 2026 07:19:21 +0000
Subject: [PATCH 2/3] Fix cpp/overrunning-write alert: use snprintf instead of
 sprintf in plot.cc

---
 src/plot.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/plot.cc b/src/plot.cc
index 31b90f6..edc3170 100644
--- a/src/plot.cc
+++ b/src/plot.cc
@@ -138,9 +138,9 @@ namespace
             int omag=int(log10(x));
             int lead=x*pow(10,-omag);
 #if defined(PANGO) && !defined(_WIN32)
-           sprintf(label,"%d×10<sup>%d</sup>",lead,omag);
+           snprintf(label,sizeof(label),"%d×10<sup>%d</sup>",lead,omag);
 #else
-           sprintf(label,"%dE%d",lead,omag);
+           snprintf(label,sizeof(label),"%dE%d",lead,omag);
 #endif
           }
         return label;

From d7d838b7c93691b82c1d1e8ee6f5663c3a5dea53 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 18 Jul 2026 07:54:47 +0000
Subject: [PATCH 3/3] Increase label buffer from 30 to 64 bytes to prevent
 overflow

---
 src/plot.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/plot.cc b/src/plot.cc
index edc3170..aa95fcd 100644
--- a/src/plot.cc
+++ b/src/plot.cc
@@ -123,7 +123,7 @@ namespace
   // magnitude if log
   string logAxisLabel(double x)
   {
-    char label[30];
+    char label[64];
     if (x<=0) return ""; // -ve values meaningless
         if (x>=0.01 && x<1)
           {
@@ -138,9 +138,9 @@ namespace
             int omag=int(log10(x));
             int lead=x*pow(10,-omag);
 #if defined(PANGO) && !defined(_WIN32)
-           snprintf(label,sizeof(label),"%d×10<sup>%d</sup>",lead,omag);
+           sprintf(label,"%d×10<sup>%d</sup>",lead,omag);
 #else
-           snprintf(label,sizeof(label),"%dE%d",lead,omag);
+           sprintf(label,"%dE%d",lead,omag);
 #endif
           }
         return label;