Function SafeFirstChar

tensorflow/core/lib/strings/numbers.cc:214–217

namespace {
char SafeFirstChar(StringPiece str) {
  if (str.empty()) return '\0';
  return str[0];
}
void SkipSpaces(StringPiece* str) {
  while (isspace(SafeFirstChar(*str))) str->remove_prefix(1);
}