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remove stringstream dependency

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This commit is contained in:
Matthias Möller 2018-05-31 13:27:11 +02:00
parent 8efbf8d7bb
commit 64acb42aa7
3 changed files with 14 additions and 22 deletions
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10
include/nlohmann/detail/input/binary_reader.hpp
View file

@ -6,12 +6,10 @@
#include <cmath> // ldexp
#include <cstddef> // size_t
#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
#include <cstdio> // snprinft
#include <cstring> // memcpy
#include <iomanip> // setw, setfill
#include <ios> // hex
#include <iterator> // back_inserter
#include <limits> // numeric_limits
#include <sstream> // stringstream
#include <string> // char_traits, string
#include <utility> // make_pair, move
@ -1665,9 +1663,9 @@ class binary_reader
*/
std::string get_token_string() const
{
std::stringstream ss;
ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << current;
return ss.str();
char cr[3];
snprintf(cr, 3, "%.2X", current);
return std::string{cr};
}
private:

11
include/nlohmann/detail/input/lexer.hpp
View file

@ -3,10 +3,8 @@
#include <clocale> // localeconv
#include <cstddef> // size_t
#include <cstdlib> // strtof, strtod, strtold, strtoll, strtoull
#include <cstdio> // snprintf
#include <initializer_list> // initializer_list
#include <ios> // hex, uppercase
#include <iomanip> // setw, setfill
#include <sstream> // stringstream
#include <string> // char_traits, string
#include <vector> // vector
@ -1174,10 +1172,9 @@ scan_number_done:
if ('\x00' <= c and c <= '\x1F')
{
// escape control characters
std::stringstream ss;
ss << "<U+" << std::setw(4) << std::uppercase << std::setfill('0')
<< std::hex << static_cast<int>(c) << ">";
result += ss.str();
char cs[9];
snprintf(cs, 9, "<U+%.4X>", c);
result += cs;
}
else
{

15
include/nlohmann/detail/output/serializer.hpp
View file

@ -9,11 +9,8 @@
#include <cstddef> // size_t, ptrdiff_t
#include <cstdint> // uint8_t
#include <cstdio> // snprintf
#include <iomanip> // setfill
#include <iterator> // next
#include <limits> // numeric_limits
#include <string> // string
#include <sstream> // stringstream
#include <type_traits> // is_same
#include <nlohmann/detail/exceptions.hpp>
@ -389,9 +386,9 @@ class serializer
case UTF8_REJECT: // decode found invalid UTF-8 byte
{
std::stringstream ss;
ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << static_cast<int>(byte);
JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + ss.str()));
std::string sn(3, '\0');
snprintf(&sn[0], sn.size(), "%.2X", byte);
JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn));
}
default: // decode found yet incomplete multi-byte code point
@ -417,9 +414,9 @@ class serializer
else
{
// we finish reading, but do not accept: string was incomplete
std::stringstream ss;
ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << static_cast<int>(static_cast<uint8_t>(s.back()));
JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + ss.str()));
std::string sn(3,'\0');
snprintf(&sn[0], sn.size(), "%.2X", s.back());
JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn));
}
}