That's Confirmed The JSON foundation Bug SR-6631, is a Bug in Darwin's Objc Foundations.

Dear All,

Philippe Hausler has emitted the hypothesis that https://bugs.swift.org/browse/SR-6631 was a bug in Darwin Objc Foundations.
He was right! Shall i close the Swift SR-6631?

The following Objc Implementation is faulting:

#import <Foundation/Foundation.h>

int main(int argc, const char * argv) {
    @autoreleasepool {
        // Let's set to french
        setlocale(LC_ALL,"fr_FR");
        NSDictionary *dictionary = @{@"decimalValue":@1.1};
        NSError* error = nil;
        NSData* data = [NSJSONSerialization dataWithJSONObject:dictionary options:kNilOptions error:&error];
        NSString * json = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@",json);
    }
    return 0;
}

Result : 2017-12-19 09:08:49.657316+0100 doubleEncodingObjc[2016:82301] {"decimalValue":1,1000000000000001}

I’have been updating the relevant radar: https://bugreport.apple.com/web/?problemID=36107307

Benoit

Benoit Pereira da Silva
Ultra Mobile Developer & Movement Activist
Développeur Ultra Mobile & Militant du mouvement
https://pereira-da-silva.com <https://pereira-da-silva.com/>

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Hi Benoit,

Thanks for the bug report. We’ll track it in Radar for Darwin platforms.

If the swift-corelibs-foundation implementation has the same bug (perhaps — I haven’t checked) then we can continue to track it with SR-6631 separately.

- Tony

···

On Dec 19, 2017, at 12:23 AM, Benoit Pereira da silva via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:

Dear All,

Philippe Hausler has emitted the hypothesis that https://bugs.swift.org/browse/SR-6631 was a bug in Darwin Objc Foundations.
He was right! Shall i close the Swift SR-6631?

The following Objc Implementation is faulting:

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // Let's set to french
        setlocale(LC_ALL,"fr_FR");
        NSDictionary *dictionary = @{@"decimalValue":@1.1};
        NSError* error = nil;
        NSData* data = [NSJSONSerialization dataWithJSONObject:dictionary options:kNilOptions error:&error];
        NSString * json = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@",json);
    }
    return 0;
}

Result : 2017-12-19 09:08:49.657316+0100 doubleEncodingObjc[2016:82301] {"decimalValue":1,1000000000000001}

I’have been updating the relevant radar: https://bugreport.apple.com/web/?problemID=36107307 <https://bugreport.apple.com/web/?problemID=36107307>

Benoit

Benoit Pereira da Silva
Ultra Mobile Developer & Movement Activist
Développeur Ultra Mobile & Militant du mouvement
https://pereira-da-silva.com <https://pereira-da-silva.com/>

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This e-mail is confidential. Distribution, copy, publication or use of this information for any purpose is prohibited without agreement of the sender.
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I've just encountered this bug. It seems to continue existing on macOS Mojave 10.14.2 which is surprising given that is a serious bug, you cannot encode valid JSON with decimal values in a lot of locales. Any update?

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