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-rw-r--r--libbutl/utility.cxx17
1 files changed, 9 insertions, 8 deletions
diff --git a/libbutl/utility.cxx b/libbutl/utility.cxx
index 3606972..da42517 100644
--- a/libbutl/utility.cxx
+++ b/libbutl/utility.cxx
@@ -166,9 +166,9 @@ namespace std
// Strip the suffix for system_error thrown by
// throw_system_error(system_code) on Windows. For example for the
- // ERROR_INVALID_DATA error code the original description will be
- // 'Invalid data. : Success' or 'Invalid data. : No error' for MinGW
- // libstdc++ and 'Invalid data. : Success.' or ". : The operation completed
+ // ERROR_INVALID_DATA error code the original description will be 'Invalid
+ // data. : Success' or 'Invalid data. : No error' for MinGW libstdc++ and
+ // 'Invalid data. : Success.' or ". : The operation completed
// successfully." for msvcrt.
//
// Check if the string ends with the specified suffix and return its
@@ -177,14 +177,15 @@ namespace std
auto suffix = [s, n] (const char* v) -> size_t
{
size_t nv (string::traits_type::length (v));
- return string::traits_type::compare (s + n - nv, v, nv) == 0 ? nv : 0;
+ return (n >= nv && string::traits_type::compare (s + n - nv, v, nv) == 0
+ ? nv
+ : 0);
};
size_t ns;
- if (n >= 11 &&
- ((ns = suffix (". : Success")) ||
- (ns = suffix (". : No error")) ||
- (ns = suffix (". : The operation completed successfully"))))
+ if ((ns = suffix (". : Success")) ||
+ (ns = suffix (". : No error")) ||
+ (ns = suffix (". : The operation completed successfully")))
n -= ns;
// Lower-case the first letter if the beginning looks like a word (the