X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ad0cb80ebff7603232ec1621d9b6cfa1ea3471f6..d0d1912b2262e2aaf06b39115de5f846e2a86efe:/src/xbt/string.cpp

diff --git a/src/xbt/string.cpp b/src/xbt/string.cpp
index 4489c33abe..7468c3b095 100644
--- a/src/xbt/string.cpp
+++ b/src/xbt/string.cpp
@@ -1,20 +1,56 @@
-/* Copyright (c) 2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2015-2021. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#include <simgrid_config.h>
+#include <simgrid/config.h>
 #include <xbt/string.hpp>
+#include <xbt/sysdep.h>
+
+#include <cstdarg>
+#include <cstdio>
 
 namespace simgrid {
 namespace xbt {
 
-#ifdef HAVE_MC
+#if SIMGRID_HAVE_MC
 
-const char string::NUL = '\0';
+char string::NUL = '\0';
 
 #endif
 
+std::string string_vprintf(const char *fmt, va_list ap)
+{
+  // Get the size:
+  va_list ap2;
+  va_copy(ap2, ap);
+  int size = std::vsnprintf(nullptr, 0, fmt, ap2);
+  va_end(ap2);
+  xbt_assert(size >= 0, "string_vprintf error");
+
+  // Allocate the string and format:
+  std::string res;
+  res.resize(size);
+  if (size != 0)
+    xbt_assert(std::vsnprintf(&res[0], size + 1, fmt, ap) == size, "string_vprintf error");
+  return res;
+}
+
+std::string string_printf(const char *fmt, ...)
+{
+  va_list ap;
+  va_start(ap, fmt);
+  std::string res;
+  try {
+    res = string_vprintf(fmt, ap);
+  }
+  catch(...) {
+    va_end(ap);
+    throw;
+  }
+  va_end(ap);
+  return res;
+}
+
 }
 }