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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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11
include/nlohmann/detail/input/lexer.hpp
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@ -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
{