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util: use locale-independent parsing in ParseDouble 

Use locale-indepent C++ based parsing instead of C's strtod,
which checks for different input based on the user's locale.
Fixes #6443.
This commit is contained in:
Wladimir J. van der Laan 2015-07-18 08:16:21 +02:00
parent 7650449a67
commit ec249d4a1d
1 changed files with 6 additions and 5 deletions
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11
src/utilstrencodings.cpp
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@ -464,11 +464,12 @@ bool ParseDouble(const std::string& str, double *out)
return false; return false;
if (str.size() >= 2 && str[0] == '0' && str[1] == 'x') // No hexadecimal floats allowed if (str.size() >= 2 && str[0] == '0' && str[1] == 'x') // No hexadecimal floats allowed
return false; return false;
char *endp = NULL; std::istringstream text(str);
errno = 0; // strtod will not set errno if valid text.imbue(std::locale::classic());
double n = strtod(str.c_str(), &endp); double result;
if(out) *out = n; text >> result;
return endp && *endp == 0 && !errno; if(out) *out = result;
return text.eof() && !text.fail();
} }
std::string FormatParagraph(const std::string& in, size_t width, size_t indent) std::string FormatParagraph(const std::string& in, size_t width, size_t indent)