Error Syntax Error Before Numeric Constant Mplab
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn parse error before numeric constant more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags error syntax error before token Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you,
Syntax Error Before Token Dev C++
helping each other. Join them; it only takes a minute: Sign up GCC says “syntax error before numeric constant” in generated header file from bison up vote 9 down vote favorite 2 When I compile my .y file
Error Expected Identifier Before Numeric Constant Enum
with bison parser.y -d -t and then include the parser.tab.h file in my flex file, gcc says "error: syntax error before numeric constant." It's referencing line 32, which is the first line in the enum of yytokentype. enum yytokentype { BREAK = 258, ... } The error is about the line "BREAK = 258." I honestly don't know why this is happening--I would really like to use the generated yylval and I need it from this header error expected identifier before numeric constant in c file. Even if I declared yytokentype like this in my flex file, I would get the same error. Anything I could be doing wrong? gcc enums bison flex-lexer share|improve this question edited May 6 '13 at 12:05 lesmana 12.9k64469 asked Aug 13 '10 at 2:08 Kizaru 1,55821330 2 I'm guessing there is a redefinition of BREAK somewhere above the errored line. The -E flag to gcc is good for ferreting these problems out. –msw Aug 13 '10 at 2:25 add a comment| 2 Answers 2 active oldest votes up vote 18 down vote accepted Is BREAK defined somewhere else in your code? I get a similar error from the following toy example: #define BREAK 10 enum yytokentype { BREAK = 258 }; Build example: $ cc -c file.c file.c:4: error: expected identifier before numeric constant share|improve this answer edited Aug 13 '10 at 2:31 answered Aug 13 '10 at 2:25 Carl Norum 147k19263345 Hmm? That example will fail with or without the #define because of the semicolon. –user181548 Aug 13 '10 at 2:28 Yep... That's the issue. I checked all of my #includes and found it in one of them. Thanks for the help to both of you. –Kizaru Aug 13 '10 at 2:30 @Kinopiko, oops, should have copy/pasted instead of retyping. Fixed now. –Carl Norum Aug 13 '10 a
Ask a Question Need help? Post your question and get tips & solutions from a community of 418,546 IT Pros & Developers. It's quick
Typedef Enum
& easy. How to fix "syntax error before numeric constant " error message? enum in c P: 3 lingjun Hi, I am taking my first programing course in college... and I am completely lost on this assignment. I am not sure what is wrong with my current code. Any help will be appreciate it... thanks! I keep on getting the follow error messages when I try to compile http://stackoverflow.com/questions/3473406/gcc-says-syntax-error-before-numeric-constant-in-generated-header-file-from-bi it. test.c:3: error: syntax error before numeric constant test.c: In function `main': test.c:18: error: `next_day' undeclared (first use in this function) test.c:18: error: (Each undeclared identifier is reported only once test.c:18: error: for each function it appears in.) test.c: In function `find_next_day': test.c:25: error: parameter name omitted test.c:29: error: syntax error before "day" test.c:32: error: break statement not within loop or switch test.c:33: error: case label https://bytes.com/topic/c/answers/910302-how-fix-syntax-error-before-numeric-constant-error-message not within a switch statement .... test.c:53: error: syntax error before "return" My code is the following: Expand|Select|Wrap|Line Numbers #include
power consumption. The reason this is important is because you want to know if anything on your circuit is shorted out. In my http://www.engscope.com/pic24-tutorial/3-first-program/ lab, I have a BK Precision DC regulated power supply. I can http://diydrones.com/forum/topics/icdwarn0020-invalid-target fix either the current or the voltage of the output. If I run the power supply at a fixed voltage, it will tell me the current drain that my circuit is taking. The circuit I have shown in the previous tutorial section should drain less than 10 mA. If you error before see that the ampere readings oscillate in large jumps or is draining a lot of power, say 100 mA or more, you probably shorted something. It is important to have proper power regulation on any digital circuit. This is because digital circuits have a large number of switching electronics. Switching electronics tend to drain current erratically. The result, if you have ever measured before numeric constant a Vdd line on digital circuit, it is very noisy. To avoid a glitch on the power line that could possibly reset the microcontroller, it is important to do two things: 1. Proper bypass capacitors on power pins – The capacitors on a digital circuit act as tiny little temporary batteries. This allows the erratic drain of current to be smoothed out so that inadvertent resets can be avoided. Remember to place the capacitors as close to the power pins as possible. 2. Onboard voltage regulator with proper bypass capacitors – This should be pretty straight forward if you’ve ever done any electronic designs. A voltage regulator is essential to ensuring that your power line retains the proper potential during operations. Typically if my total circuit drain for 3.3V is less than 150 mA, I use the LP-2985-3.3 by National Semiconductor. They are cheap, have a very low dropout voltage, and only require 3 external capacitors. However it is a linear regulator, and should probably be avoided if you are using it for any mobile applications where power consumption is a priority. Using MPLAB IDE Befo
News ReportsArduCopterArduCopter ManualForumsArduCopter User GroupDevelopersArduPlaneArduPlane ManualForumsArduPlane User GroupDevelopersArduRoverArduRover ManualArduRover User GroupForumsArduBoat User GroupArduBoat ManualForumsDevelopersPX4 SoftwareSupported vehiclesDocumentationHardwareQGroundControl GCSDev communityMembersMy PageLeaderboardsLocal UAV groupsUAV DevBoard All Discussions My Discussions Add ICDWarn0020: Invalid target device id (expected=0x101, read=0x0) Posted by Dante on May 10, 2009 at 10:43pm in UAV Dev Board View Discussions Hello, I bought the UAV dev board and the MPLAB ICD2 programmer. I am receiving the following message when trying to connect to the board: ICDWarn0020: Invalid target device id (expected=0x101, read=0x0) The programmer is working fine through USB and all self tests pass OK. The UAV Dev Board works OK with the preloaded software without being connected to the programmer. Do you know what could be happening and how can I get it programmed from the ICD2? Thanks and regards. Tags: Like 0 members like this Share Tweet Views: 6210 ▶ Reply to This Replies to This Discussion T3Permalink Reply by William Premerlani on May 11, 2009 at 12:48am Dante, The first thing to check are the power options under the programmer settings. Make sure that the ICD2 is not trying to supply power to the board. If that option is checked, uncheck it. Next, I have a question for you. Are you using the recommended ICD2? http://www.sparkfun.com/commerce/product_info.php?products_id=5 Some folks (myself included) bought a PIC-ICD2-Pocket, and had some problems with it. If you have a PIC-ICD2-Pocket, that could be the problem. Assuming that you have the right ICD2, where did you connect the 6 wire programming cable to it? There are two places that you could connect, only one of them will work. You should connect to the 6 pin header that is between the USB and the RS232. Another thing to check is the continuity of the 6 wire programming cable. It is possible that one of the wires is broken or is not making a good connection with its pin. I am in the process