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🔨 added code for user-defined number types

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This commit is contained in:
Niels Lohmann 2017-03-26 18:45:04 +02:00
parent 3425527970
commit f75e195db3
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GPG Key ID: 7F3CEA63AE251B69
1 changed files with 30 additions and 11 deletions
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41
src/json.hpp
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@ -10771,6 +10771,23 @@ class basic_json
}
}
// overloaded wrappers for strtod/strtof/strtold
// that will be called from parse<floating_point_t>
static void strtof(float& f, const char* str, char** endptr) noexcept
{
f = std::strtof(str, endptr);
}
static void strtof(double& f, const char* str, char** endptr) noexcept
{
f = std::strtod(str, endptr);
}
static void strtof(long double& f, const char* str, char** endptr) noexcept
{
f = std::strtold(str, endptr);
}
token_type scan_number()
{
static unsigned char lookup[9][256] =
@ -10851,23 +10868,25 @@ class basic_json
errno = 0;
if (has_sign)
{
value_integer = std::strtoll(yytext.data(), &endptr, 10);
if (JSON_LIKELY(errno == 0 and endptr == yytext.data() + yylen))
const auto x = std::strtoll(yytext.data(), &endptr, 10);
value_integer = static_cast<number_integer_t>(x);
if (JSON_LIKELY(errno == 0 and endptr == yytext.data() + yylen and value_integer == x))
{
return token_type::value_integer;
}
}
else
{
value_unsigned = std::strtoull(yytext.data(), &endptr, 10);
if (JSON_LIKELY(errno == 0 and endptr == yytext.data() + yylen))
const auto x = std::strtoull(yytext.data(), &endptr, 10);
value_unsigned = static_cast<number_unsigned_t>(x);
if (JSON_LIKELY(errno == 0 and endptr == yytext.data() + yylen and value_unsigned == x))
{
return token_type::value_unsigned;
}
}
}
value_float = std::strtod(yytext.data(), nullptr);
strtof(value_float, yytext.data(), nullptr);
return token_type::value_float;
}
@ -10996,14 +11015,14 @@ class basic_json
case lexer::token_type::value_unsigned:
{
result.m_type = value_t::number_unsigned;
result.m_value = static_cast<number_unsigned_t>(value_unsigned);
result.m_value = value_unsigned;
return true;
}
case lexer::token_type::value_integer:
{
result.m_type = value_t::number_integer;
result.m_value = static_cast<number_integer_t>(value_integer);
result.m_value = value_integer;
return true;
}
@ -11016,7 +11035,7 @@ class basic_json
}
result.m_type = value_t::number_float;
result.m_value = static_cast<number_float_t>(value_float);
result.m_value = value_float;
return true;
}
@ -11114,9 +11133,9 @@ class basic_json
std::string error_message = "";
// number values
long long value_integer = 0;
unsigned long long value_unsigned = 0;
double value_float = 0;
number_integer_t value_integer = 0;
number_unsigned_t value_unsigned = 0;
number_float_t value_float = 0;
// the decimal point
const char decimal_point_char = '\0';