diff options
| -rw-r--r-- | libqpdf/QPDFTokenizer.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libqpdf/QPDFTokenizer.cc b/libqpdf/QPDFTokenizer.cc index 4217575c..f4439fd1 100644 --- a/libqpdf/QPDFTokenizer.cc +++ b/libqpdf/QPDFTokenizer.cc @@ -719,7 +719,7 @@ QPDFTokenizer::findEI(PointerHolder<InputSource> input) for (std::string::iterator iter = value.begin(); iter != value.end(); ++iter) { - signed char ch = *iter; + char ch = *iter; if (((ch >= 'a') && (ch <= 'z')) || ((ch >= 'A') && (ch <= 'Z')) || (ch == '*')) @@ -729,10 +729,11 @@ QPDFTokenizer::findEI(PointerHolder<InputSource> input) // alphabetic characters. found_alpha = true; } - else if ((ch < 32) && (! isSpace(ch))) + else if ((static_cast<signed char>(ch) < 32) && + (! isSpace(ch))) { - // ch is signed, so characters outside of - // 7-bit will be < 0. + // Compare ch as a signed char so characters + // outside of 7-bit will be < 0. found_non_printable = true; break; } |