Re: What am I looking for in the documentation?
It should go without saying that the text char array you suggest must already exist, and be at least one char longer than the longest string you expect (I'd make it twice as long). And use snprintf(3) instead. Bad People (or you) will try to overrun the buffer if you don't prevent it. (Not likely with a %f format spec, but even if you trust the dealer, you always cut the cards.) — F On 4 May 2013, at 6:23 PM, Mohit Sharma mohit.sharma0...@gmail.com wrote: You might want to look at sprintf http://linux.die.net/man/3/sprintf. sprintf(text, %f, fv) should work just fine. On Sat, May 4, 2013 at 4:20 PM, YT y...@redwoodcontent.com wrote: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. -- Fritz Anderson Xcode 4 Unleashed: 4.5 supplement for free! http://www.informit.com/store/xcode-4-unleashed-9780672333279 ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
You might want to look at sprintf http://linux.die.net/man/3/sprintf. sprintf(text, %f, fv) should work just fine. On Sat, May 4, 2013 at 4:20 PM, YT y...@redwoodcontent.com wrote: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. My mind is mush at the moment - can't seem to recall the way to program a conversion of float fv = 40.0; into const char *text = 40.0; or const char text[ ] = 40.0; Please advise... Thanks YT ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/mohit.sharma0690%40gmail.com This email sent to mohit.sharma0...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
On Sat, 4 May 2013 16:20:14 -0700, YT said: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. My mind is mush at the moment - can't seem to recall the way to program a conversion of float fv = 40.0; into const char *text = 40.0; or const char text[ ] = 40.0; Also consider localisation... do you absolutely want the '.' character, or whatever decimal character is specified by the user's locale (or the user himself)? Consider NSNumberFormatter if you want localisation. Cheers, -- Sean McBride, B. Eng s...@rogue-research.com Rogue Researchwww.rogue-research.com Mac Software Developer Montréal, Québec, Canada ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
On May 6, 2013, at 09:03 , Sean McBride s...@rogue-research.com wrote: Also consider localisation... do you absolutely want the '.' character, or whatever decimal character is specified by the user's locale (or the user himself)? Consider NSNumberFormatter if you want localisation. Yes! I don't know what I was thinking with my original suggestion. Sean is right. Use an NSNumberFormatter. -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
On May 4, 2013, at 4:20 PM, YT y...@redwoodcontent.com wrote: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. Knowing which API you mean, I would recommend against using it (basically Quartz is bad at drawing strings, and you should use a higher level library to do that). NSString has simple methods available on both OS X and iOS for drawing strings into the current graphics context, I would highly recommend them instead. -- David Duncan ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
Thanks! sprintf worked great - Didn't realize that those wonderful Standard C functions were available. Again, Thanks YT On May 4, 2013, at 4:23 PM, Mohit Sharma mohit.sharma0...@gmail.com wrote: You might want to look at sprintf. sprintf(text, %f, fv) should work just fine. On Sat, May 4, 2013 at 4:20 PM, YT y...@redwoodcontent.com wrote: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. My mind is mush at the moment - can't seem to recall the way to program a conversion of float fv = 40.0; into const char *text = 40.0; or const char text[ ] = 40.0; Please advise... Thanks YT ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/mohit.sharma0690%40gmail.com This email sent to mohit.sharma0...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
What am I looking for in the documentation?
I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. My mind is mush at the moment - can't seem to recall the way to program a conversion of float fv = 40.0; into const char *text = 40.0; or const char text[ ] = 40.0; Please advise... Thanks YT ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What am I looking for in the documentation?
You need to do a string conversion, just like you would in any situation where you need a textual version of a number. One possible way: NSString* s = [NSString stringWithFormat: @%.1f, fv]; const char* sp = s.UTF8String; another: char* s[16]; snprintf(s, 16, %.1f, fv); On May 4, 2013, at 16:20 , YT y...@redwoodcontent.com wrote: I have need to turn a local float value into a char array. That is, The Quartz 2D graphics function requires the passing of a (const char *) to a text string or I was thinking of a character array. My mind is mush at the moment - can't seem to recall the way to program a conversion of float fv = 40.0; into const char *text = 40.0; or const char text[ ] = 40.0; Please advise... Thanks YT ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/rmann%40latencyzero.com This email sent to rm...@latencyzero.com -- Rick ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
