json_force_inline bool is_hex_digit()

in src/detail/skip_value.cpp [34:36]

• 3 lines of code
• 4 McCabe index (conditional complexity)

json_force_inline bool is_hex_digit(const char c) {
  return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
}