[swift-corelibs-dev] That's Confirmed The JSON foundation Bug SR-6631, is a Bug in Darwin's Objc Foundations.

Benoit Pereira da silva bpds at me.com
Tue Dec 19 02:22:55 CST 2017

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
        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];
    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 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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