Merge remote-tracking branch 'origin/trim__FILE__' into remote-io-pin…

…ned-bounce-buffer

cpp/include/kvikio/shim/libcurl.hpp

@@ -20,6 +20,7 @@
   "cannot include the remote IO API, please build KvikIO with libcurl (-DKvikIO_REMOTE_SUPPORT=ON)"
 #endif
 
+#include <algorithm>
 #include <cstring>
 #include <functional>
 #include <memory>
@@ -150,7 +151,7 @@ class CurlHandle {
   /**
    * @brief Construct a new curl handle.
    *
-   * Typically, do not use this directly instead use the `create_curl_handle()` macro.
+   * Typically, do not call this directly instead use the `create_curl_handle()` macro.
    *
    * @param handle An unused curl easy handle pointer, which is retained on destruction.
    * @param source_file Path of source file of the caller (for error messages).
@@ -161,11 +162,16 @@ class CurlHandle {
       _source_file(std::move(source_file)),
       _source_line(std::move(source_line))
   {
+    // Removing all '\0' characters
+    _source_file.erase(std::remove(_source_file.begin(), _source_file.end(), '\0'),
+                       _source_file.end());
+
     // Need CURLOPT_NOSIGNAL to support threading, see
     // <https://curl.se/libcurl/c/CURLOPT_NOSIGNAL.html>
     setopt(CURLOPT_NOSIGNAL, 1L);
 
     // We always set CURLOPT_ERRORBUFFER to get better error messages.
+    _errbuf[0] = 0;  // Set the error buffer as empty.
     setopt(CURLOPT_ERRORBUFFER, _errbuf);
 
     // Make curl_easy_perform() fail when receiving HTTP code errors.
@@ -216,7 +222,7 @@ class CurlHandle {
     // Perform the curl operation and check for errors.
     CURLcode err = curl_easy_perform(handle());
     if (err != CURLE_OK) {
-      std::string msg(_errbuf);
+      std::string msg(_errbuf);  // We can do this because we always initialize `_errbuf` as empty.
       std::stringstream ss;
       ss << "curl_easy_perform() error near " << _source_file << ":" << _source_line;
       if (msg.empty()) {