http://forums.leaflabs.com/topic.php?id=662 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:23:01 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=662#post-3732 Thu, 24 Feb 2011 19:46:07 +0000 gbulmer 3732@http://forums.leaflabs.com/ <p>A better solution is to explicitly declare the char as signed:<br /> <code>signed char toto;</code></p> <p>This has two benefits:<br /> 1. Everyone can understand the meaning of the type, and hence what should happen, by reading the program code that the compiler uses<br /> 2. it doesn't matter what the command line options to gcc are, so it should compile correctly in the Maple IDE, or the Arduino IDE, or any other C/C++ compiler </p> http://forums.leaflabs.com/topic.php?id=662#post-3730 Thu, 24 Feb 2011 17:45:29 +0000 Xavier 3730@http://forums.leaflabs.com/ <p>Just got the solution after some research :<br /> I added "-fsigned-char" in the list of arm-gcc params and everything work !</p> <p>:-)</p> <p>Xavier </p> http://forums.leaflabs.com/topic.php?id=662#post-3729 Thu, 24 Feb 2011 17:26:48 +0000 Xavier 3729@http://forums.leaflabs.com/ <p>Hi, </p> <p>I have some negative numbered value contained in 'char' and i cannot get them displayed properly.</p> <p><code><br /> int value;<br /> char toto = -4;<br /> value = value;<br /> lcd-&gt;print(value);<br /> SerialUSB.println(value);<br /> </code></p> <p>Both lcd and serialUSB display 252 !<br /> Displaying an int directly works :<br /> <code><br /> int value;<br /> value = -4;<br /> lcd-&gt;print(value);<br /> SerialUSB.println(value);<br /> </code></p> <p>I then can see a nice -4.</p> <p>Does anyone have an idea ?</p> <p>Thanks,</p> <p>Xavier </p>