Home > Error In > #ifdef Error Warning

#ifdef Error Warning


Test: unexpected "text" error The expression is finished logically, but there was more text on the line. Previous Tip This entry was posted on Thursday, September 1st, 2011 at 5:21 pm and is filed under Effective C/C++. Retrieved 27 October 2008. ^ a b "The C Preprocessor: Overview". more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science

If you insist on putting quotes around the text, then they will be printed to stderr as well. We are pleased to inform you that on 5 September 2016, SoftBank Group Corp. I also tried #warn "my message", but this is not recognized my Sun's CPP. Invalid executable 'program' [ (ignored) | (keep working) ] error / report The specified program was not a valid executable.

#error In C

The argument to be evaluated is the name of a definition. #ifndef Same as #ifdef but the evaluation succeeds if the definition is not defined. #include Reads source text from an Token concatenation[edit] The ## operator (known as the "Token Pasting Operator") concatenates two tokens into one token. Example: #define DECLARE_STRUCT_TYPE(name) typedef struct name##_s name##_t DECLARE_STRUCT_TYPE(g_object); // Outputs: typedef struct g_object_s g_object_t; User-defined compilation errors[edit] The #error directive outputs a message through the error stream. #error "error message" Implementations[edit]

The additional shell lines are ignored. A diff with 30 commented lines of code is much more visible than the two rows of "#if 0 / #endif". This can be introduced through a command line flag, which can be parameterized using a makefile, so that a different set of include files can be swapped in for different operating Gcc #warning Directive Special macros and directives[edit] Certain symbols are required to be defined by an implementation during preprocessing.

If you're using the "-c" flag, try running without it. Gcc #message printing a warning with the preprocessor P: n/a Shea Martin I would like to issue a warning with the preprocessor: #ifdef _A_DEFINE && OTHER_DEFINE #print "_A_DEFINE and OTHER_DEFINE cannot both be A quote in text was not matched. A compiler with support for the OpenMP parallelization library can automatically parallelize a for loop with #pragma omp parallel for.

git, mercurial et al.), forget about subversion, cvs etc. 2. #error In C Example One little-known usage pattern of the C preprocessor is known as X-Macros.[2][3][4] An X-Macro is a header file. Can't open response file 'name' warning The automatic response file name could not be opened for writing. Creating 'makefile' from 'template' warning The makefile was initially empty and MKMF copies template into makefile.

Gcc #message

Macro 'name' has no value warning A run-time macro was used before its value was set. Another possible cause is that your makefile is too large to fit into memory or that Make installed a TSR. #error In C ad "Shea Martin" wrote in message news:31*************@individual.net...Dave O'Hearn wrote:Shea Martin wrote: I also tried #warn "my message", but this is not recognizedmy Sun's CPP. #error C++ Anyway, #pragma message is not supported.

For an identifier declared to be a function-like macro, it is only replaced when the following token is also a left parenthesis that begins the argument list of the macro invocation. The probable cause of this error is that the MAKE_TMP macro has not been set properly. Including files[edit] One of the most common uses of the preprocessor is to include another file: #include int main(void) { printf("Hello, world!\n"); return 0; } The preprocessor replaces the line This way once I have finally resolved what is wrong, I can search for my specific comments to back out any unrelated changes etc. C Preprocessor Message

The relevant file could be just ripped off. /Pavel Jul 22 '05 #6 P: n/a adbarnet how about #pragma message("message text") ? The second x is enclosed in its own pair of parentheses to avoid the possibility of incorrect order of operations when it is an expression instead of a single value. Preprocessor macros are expanded except if appearing inside quoted strings (").Example #error "Unsupported part:" __PART_NAME__ PrevUpNextHomeContentsSearchDocumentation HomeAVR AssemblerPrefaceAVR Assembler Known IssuesAVR Assembler Command Line OptionsAssembler sourceAVR Assembler SyntaxAssembler directivesAVR Assembler PreprocessorIntroductionPreprocessor warning/report/error In file name on line num, the included file filename cannot be found along the .HDRPATH.source_file_extension.

Dave O'Hearn wrote: Shea Martin wrote:I also tried #warn "my message", but this is not recognizedmy Sun's CPP. #error Gcc Can't read 'template'. Reply Lundin says: September 20, 2011 at 10:23 am To comment out code is banned by MISRA-C, that's probably where you (and/or Barr) picked it up.

Commonly these use the extension ".def" instead of the traditional ".h".

A number-sign ('#') that appears alone on a line is interpreted as a null preprocessor directive. If you look at the warning generated with #warning, you'll typically see a number associated with it. Reply Sibin says: September 28, 2011 at 2:14 am A good editor (like Vim) would show the code under #if 0 as comments too. Error Directive Must Use C++ For The Type Iostream Can't have both .PATH.ext and VPATH.ext error Both a .PATH.ext and VPATH.ext macro were specified, but Make does not know which macro to use for determining the search directories.

However, if the shell line was prefixed with "–" the report message would be OPUS MAKE: Shell line exit status 4 (ignored) and Make would continue. Otherwise the makefile is too large or there are too many header files. Make file writable. Next:Line Control, Previous:Conditionals, Up:Top 5 Diagnostics The directive ‘#error’ causes the preprocessor to report a fatal error.

SourceSafe: SSDATA not set. I've just setup my emacs to do that, thanks.