Fix out-of-range error

Closes #31.
2026-01-19 04:22:15 +00:00 · 2017-07-21 18:30:47 +03:00
parent a30cc1082f
commit 3e1d2603e6
1 changed files with 6 additions and 1 deletions
--- a/include/boost/program_options/errors.hpp
+++ b/include/boost/program_options/errors.hpp
@@ -26,7 +26,12 @@ namespace boost { namespace program_options {
    inline std::string strip_prefixes(const std::string& text)
    {
        // "--foo-bar" -> "foo-bar"
-        return text.substr(text.find_first_not_of("-/"));
+        std::string::size_type i = text.find_first_not_of("-/");
+        if (i == std::string::npos) {
+            return text;
+        } else {
+            return text.substr(i);
+        }
    }

    /** Base class for all errors in the library. */