diff options
Diffstat (limited to 'src/pugixml.cpp')
| -rw-r--r-- | src/pugixml.cpp | 77 |
1 files changed, 43 insertions, 34 deletions
diff --git a/src/pugixml.cpp b/src/pugixml.cpp index 56d7c75..4bc971b 100644 --- a/src/pugixml.cpp +++ b/src/pugixml.cpp @@ -127,6 +127,16 @@ using std::memset; # define PUGI__MSVC_CRT_VERSION _MSC_VER #endif +// Not all platforms have snprintf; we define a wrapper that uses snprintf if possible. This only works with buffers with a known size. +#if __cplusplus >= 201103 +# define PUGI__SNPRINTF(buf, ...) snprintf(buf, sizeof(buf), __VA_ARGS__) +#elif defined(_MSC_VER) && _MSC_VER >= 1400 +# define PUGI__SNPRINTF(buf, ...) _snprintf_s(buf, sizeof(buf), _TRUNCATE, __VA_ARGS__) +#else +# define PUGI__SNPRINTF sprintf +#endif + +// We put implementation details into an anonymous namespace in source mode, but have to keep it in non-anonymous namespace in header-only mode to prevent binary bloat. #ifdef PUGIXML_HEADER_ONLY # define PUGI__NS_BEGIN namespace pugi { namespace impl { # define PUGI__NS_END } } @@ -353,7 +363,7 @@ PUGI__NS_BEGIN bucket = (bucket + probe + 1) & hashmod; } - assert(false && "Hash table is full"); + assert(false && "Hash table is full"); // unreachable return 0; } @@ -2144,7 +2154,7 @@ PUGI__NS_BEGIN if (encoding == encoding_latin1) return convert_buffer_generic(out_buffer, out_length, contents, size, latin1_decoder()); - assert(false && "Invalid encoding"); + assert(false && "Invalid encoding"); // unreachable return false; } #else @@ -2249,7 +2259,7 @@ PUGI__NS_BEGIN if (encoding == encoding_latin1) return convert_buffer_latin1(out_buffer, out_length, contents, size, is_mutable); - assert(false && "Invalid encoding"); + assert(false && "Invalid encoding"); // unreachable return false; } #endif @@ -2696,7 +2706,7 @@ PUGI__NS_BEGIN case 5: return strconv_pcdata_impl<opt_true, opt_false, opt_true>::parse; case 6: return strconv_pcdata_impl<opt_true, opt_true, opt_false>::parse; case 7: return strconv_pcdata_impl<opt_true, opt_true, opt_true>::parse; - default: assert(false); return 0; // should not get here + default: assert(false); return 0; // unreachable } } @@ -2873,7 +2883,7 @@ PUGI__NS_BEGIN case 13: return strconv_attribute_impl<opt_true>::parse_wnorm; case 14: return strconv_attribute_impl<opt_false>::parse_wnorm; case 15: return strconv_attribute_impl<opt_true>::parse_wnorm; - default: assert(false); return 0; // should not get here + default: assert(false); return 0; // unreachable } } @@ -3622,7 +3632,7 @@ PUGI__NS_BEGIN if (encoding == encoding_latin1) return convert_buffer_output_generic(r_u8, data, length, wchar_decoder(), latin1_writer()); - assert(false && "Invalid encoding"); + assert(false && "Invalid encoding"); // unreachable return 0; } #else @@ -3661,7 +3671,7 @@ PUGI__NS_BEGIN if (encoding == encoding_latin1) return convert_buffer_output_generic(r_u8, data, length, utf8_decoder(), latin1_writer()); - assert(false && "Invalid encoding"); + assert(false && "Invalid encoding"); // unreachable return 0; } #endif @@ -4188,7 +4198,7 @@ PUGI__NS_BEGIN break; default: - assert(false && "Invalid node type"); + assert(false && "Invalid node type"); // unreachable } } @@ -4632,7 +4642,7 @@ PUGI__NS_BEGIN PUGI__FN bool set_value_convert(String& dest, Header& header, uintptr_t header_mask, float value) { char buf[128]; - sprintf(buf, "%.9g", value); + PUGI__SNPRINTF(buf, "%.9g", value); return set_value_ascii(dest, header, header_mask, buf); } @@ -4641,7 +4651,7 @@ PUGI__NS_BEGIN PUGI__FN bool set_value_convert(String& dest, Header& header, uintptr_t header_mask, double value) { char buf[128]; - sprintf(buf, "%.17g", value); + PUGI__SNPRINTF(buf, "%.17g", value); return set_value_ascii(dest, header, header_mask, buf); } @@ -6290,7 +6300,7 @@ namespace pugi return _root->value && (_root->header & impl::xml_memory_page_value_allocated_or_shared_mask) == 0 ? _root->value - doc.buffer : -1; default: - assert(false && "Invalid node type"); + assert(false && "Invalid node type"); // unreachable return -1; } } @@ -7252,7 +7262,7 @@ PUGI__NS_BEGIN return middle; } - template <typename T, typename Pred> void partition(T* begin, T* end, T pivot, const Pred& pred, T** out_eqbeg, T** out_eqend) + template <typename T, typename Pred> void partition3(T* begin, T* end, T pivot, const Pred& pred, T** out_eqbeg, T** out_eqend) { // invariant: array is split into 4 groups: = < ? > (each variable denotes the boundary between the groups) T* eq = begin; @@ -7290,7 +7300,7 @@ PUGI__NS_BEGIN // partition in three chunks (< = >) I eqbeg, eqend; - partition(begin, end, *median, pred, &eqbeg, &eqend); + partition3(begin, end, *median, pred, &eqbeg, &eqend); // loop on larger half if (eqbeg - begin > end - eqend) @@ -7980,11 +7990,11 @@ PUGI__NS_BEGIN // gets mantissa digits in the form of 0.xxxxx with 0. implied and the exponent #if defined(PUGI__MSVC_CRT_VERSION) && PUGI__MSVC_CRT_VERSION >= 1400 && !defined(_WIN32_WCE) - PUGI__FN void convert_number_to_mantissa_exponent(double value, char* buffer, size_t buffer_size, char** out_mantissa, int* out_exponent) + PUGI__FN void convert_number_to_mantissa_exponent(double value, char (&buffer)[32], char** out_mantissa, int* out_exponent) { // get base values int sign, exponent; - _ecvt_s(buffer, buffer_size, value, DBL_DIG + 1, &exponent, &sign); + _ecvt_s(buffer, sizeof(buffer), value, DBL_DIG + 1, &exponent, &sign); // truncate redundant zeros truncate_zeros(buffer, buffer + strlen(buffer)); @@ -7994,12 +8004,10 @@ PUGI__NS_BEGIN *out_exponent = exponent; } #else - PUGI__FN void convert_number_to_mantissa_exponent(double value, char* buffer, size_t buffer_size, char** out_mantissa, int* out_exponent) + PUGI__FN void convert_number_to_mantissa_exponent(double value, char (&buffer)[32], char** out_mantissa, int* out_exponent) { // get a scientific notation value with IEEE DBL_DIG decimals - sprintf(buffer, "%.*e", DBL_DIG, value); - assert(strlen(buffer) < buffer_size); - (void)!buffer_size; + PUGI__SNPRINTF(buffer, "%.*e", DBL_DIG, value); // get the exponent (possibly negative) char* exponent_string = strchr(buffer, 'e'); @@ -8036,7 +8044,7 @@ PUGI__NS_BEGIN char* mantissa; int exponent; - convert_number_to_mantissa_exponent(value, mantissa_buffer, sizeof(mantissa_buffer), &mantissa, &exponent); + convert_number_to_mantissa_exponent(value, mantissa_buffer, &mantissa, &exponent); // allocate a buffer of suitable length for the number size_t result_size = strlen(mantissa_buffer) + (exponent > 0 ? exponent : -exponent) + 4; @@ -8498,7 +8506,7 @@ PUGI__NS_BEGIN break; default: - assert(false && "Invalid variable type"); + assert(false && "Invalid variable type"); // unreachable } } @@ -8519,7 +8527,7 @@ PUGI__NS_BEGIN return lhs->set(static_cast<const xpath_variable_boolean*>(rhs)->value); default: - assert(false && "Invalid variable type"); + assert(false && "Invalid variable type"); // unreachable return false; } } @@ -8606,7 +8614,7 @@ PUGI__NS_BEGIN return *min_element(begin, end, document_order_comparator()); default: - assert(false && "Invalid node set type"); + assert(false && "Invalid node set type"); // unreachable return xpath_node(); } } @@ -9336,7 +9344,7 @@ PUGI__NS_BEGIN } } - assert(false && "Wrong types"); + assert(false && "Wrong types"); // unreachable return false; } @@ -9411,7 +9419,7 @@ PUGI__NS_BEGIN } else { - assert(false && "Wrong types"); + assert(false && "Wrong types"); // unreachable return false; } } @@ -9629,7 +9637,7 @@ PUGI__NS_BEGIN break; default: - assert(false && "Unknown axis"); + assert(false && "Unknown axis"); // unreachable } return false; @@ -9824,7 +9832,7 @@ PUGI__NS_BEGIN } default: - assert(false && "Unimplemented axis"); + assert(false && "Unimplemented axis"); // unreachable } } @@ -9905,7 +9913,7 @@ PUGI__NS_BEGIN } default: - assert(false && "Unimplemented axis"); + assert(false && "Unimplemented axis"); // unreachable } } @@ -10146,7 +10154,7 @@ PUGI__NS_BEGIN } default: - assert(false && "Wrong expression for return type boolean"); + assert(false && "Wrong expression for return type boolean"); // unreachable return false; } } @@ -10281,7 +10289,7 @@ PUGI__NS_BEGIN } default: - assert(false && "Wrong expression for return type number"); + assert(false && "Wrong expression for return type number"); // unreachable return 0; } @@ -10571,7 +10579,7 @@ PUGI__NS_BEGIN } default: - assert(false && "Wrong expression for return type string"); + assert(false && "Wrong expression for return type string"); // unreachable return xpath_string(); } } @@ -10662,7 +10670,7 @@ PUGI__NS_BEGIN return step_do(c, stack, eval, axis_to_type<axis_self>()); default: - assert(false && "Unknown axis"); + assert(false && "Unknown axis"); // unreachable return xpath_node_set_raw(); } } @@ -10700,7 +10708,7 @@ PUGI__NS_BEGIN // fallthrough default: - assert(false && "Wrong expression for return type node set"); + assert(false && "Wrong expression for return type node set"); // unreachable return xpath_node_set_raw(); } } @@ -12042,7 +12050,7 @@ namespace pugi return static_cast<const impl::xpath_variable_boolean*>(this)->name; default: - assert(false && "Invalid variable type"); + assert(false && "Invalid variable type"); // unreachable return 0; } } @@ -12593,6 +12601,7 @@ namespace pugi #undef PUGI__DMC_VOLATILE #undef PUGI__UNSIGNED_OVERFLOW #undef PUGI__MSVC_CRT_VERSION +#undef PUGI__SNPRINTF #undef PUGI__NS_BEGIN #undef PUGI__NS_END #undef PUGI__FN |