Databases
StackOverflow2013
Postsdbo
POWeird NSString behavior with formatString
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POWeird NSString behavior with formatString
    primarykey
    data
    text
    <p>I ran into a pretty weird issue today. I have this static method (part of a CommonUtilities source file that I've been just created that gathers all the small common methods I'd like to access anywhere in my code, like I usually do btw...)</p> <p>I just want to convert a number into its scientific value using the international system notation (k, M, G, etc.)</p> <p>Here is the code:</p> <pre><code>+ (NSString*)scientificFormatedStringForValue:(NSNumber*)value andUnits:(NSString*)_units { NSMutableString* retStr = [NSMutableString string]; long long longValue = [value longLongValue]; if (longValue &gt; 1000000000) { [retStr appendFormat:@"%d Md%@", longValue / 1000000000, _units]; } else if (longValue &gt; 1000000) { [retStr appendFormat:@"%d M%@", longValue / 1000000, _units]; } else if (longValue &gt; 1000) { [retStr appendFormat:@"%d k%@", longValue / 1000, _units]; } else { [retStr appendFormat:@"%d %@", longValue, _units]; } return retStr; } </code></pre> <p>This is pretty easy right? Ok, here's the deal: the <code>_units</code> is not converted properly.</p> <p>In my example, I use this: </p> <pre><code>[CommonUtilities scientificFormatedStringForValue:[NSNumber numberWithLongLong:longValue] andUnits:@"€"]; </code></pre> <p>I get <code>(null)</code> as <code>_units</code> for the formatted string. If I print the value of <code>_units</code>, it's a dot. So, to try to debug this, I just replaced:</p> <pre><code>[retStr appendFormat:@"%d M%@", longValue / 1000000, _units]; </code></pre> <p>with</p> <pre><code>[retStr appendFormat:@"%d M%@", longValue / 1000000, @"€"]; </code></pre> <p>Still doesn't work. It tried passing a single character (thinking the maybe the € must be converted to some UTF8 stuff or whatever. So I changed the calling method to :</p> <pre><code>[CommonUtilities scientificFormatedStringForValue:[NSNumber numberWithLongLong:longValue] andUnits:@"e"]; </code></pre> <p>Still crappy stuff. I even changed @"€" to [NSString stringWithString:@"€"], but still the same output! I can't figure out what's wrong here, I'm stuck. </p> <p>I thought of a problem in the encoding of the source file, so I deleted it and recreated it, but still the same issue....</p> <p>If any one has even the tiniest clue, that would be most helpful. Thank you guys...</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USjv42
    1. USKhal
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POWeird NSString behavior with formatString
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POWeird NSString behavior with formatString
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POWeird NSString behavior with formatString
      1. This table or related slice is empty.
      1. VTUpMod
    1. COYou've got [retStr appendFormat:@"%d Md%@", longValue / 1000000000, _units], don't you mean appendFormat:@"%d Gd%@"? Giga not mega?
      singulars
      1. POWeird NSString behavior with formatString
      1. USGnat
    2. COHave you tried creating the `NSString` inside the method, just to be sure?
      singulars
      1. POWeird NSString behavior with formatString
      1. USjv42
    3. CO@Gnat That looks like French for billion (Milliard).
      singulars
      1. POWeird NSString behavior with formatString
      1. USjv42
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload