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Fix issue #567 in writing real values in different locales

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The output of snprintf might produce ',' separators for decimal places if
certain locales are set. This commit moves the converversion from ',' to '.'
to correct place. Otherwise an additional ".0" might be appended.
This commit is contained in:
Bernhard Hartleb 2017-06-22 22:46:16 +02:00
parent 56efb6ba83
commit 4a9d77bcf7
1 changed files with 2 additions and 3 deletions
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src/lib_json/json_writer.cpp
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@ -150,7 +150,8 @@ JSONCPP_STRING valueToString(double value, bool useSpecialFloats, unsigned int p
// concepts of reals and integers.
if (isfinite(value)) {
len = snprintf(buffer, sizeof(buffer), formatString, value);
fixNumericLocale(buffer, buffer + len);
// try to ensure we preserve the fact that this was given to us as a double on input
if (!strstr(buffer, ".") && !strstr(buffer, "e")) {
strcat(buffer, ".0");
@ -165,10 +166,8 @@ JSONCPP_STRING valueToString(double value, bool useSpecialFloats, unsigned int p
} else {
len = snprintf(buffer, sizeof(buffer), useSpecialFloats ? "Infinity" : "1e+9999");
}
// For those, we do not need to call fixNumLoc, but it is fast.
}
assert(len >= 0);
fixNumericLocale(buffer, buffer + len);
return buffer;
}
}