Reply Fabio says: November 26, 2015 at 10:36 am Is it possible to disable all user-defined warnings (i.e. #warning directives) and leave all the others? I guess our workflow results in the same as your #warning, we all catch the code that is commented out. Test: unknown function "name" error An expression of the form name() had an unrecognized name. Many implementations do not support trigraphs or do not replace them by default.
Anyway, #pragma message is not supported. error Only 31 levels of foreach, if and while nesting are supported, and your makefile has more than this. %do macro missing '=' error A %do macro was missing the C/C++ Preprocessor Reference Preprocessor Preprocessor Directives Preprocessor Directives #error Directive #error Directive #error Directive #define Directive #error Directive #if, #elif, #else, and #endif Directives #ifdef and #ifndef Directives #import Directive #include 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
Out of memory error MKMF ran out of memory. Use a proper version control system (i.e. A few compilers define WIN32 instead. Include files specified with double-quotes (" ") are searched for in the current directory. #line Specifies a line number and an optional filename.
This should go into every company and software engineer's personal software process rule set. The include file is then referenced repeatedly. Including files One of the most common uses of the preprocessor is to include another file: #include
My girlfriend has mentioned disowning her 14 y/o transgender daughter Nginx - rewrite and pass_proxy to another port throws 404 not found Multiplication by One Unbounded operators defined only on dense Gcc #message This file contains a list of similar macro calls, which can be referred to as "component macros". With git you can easily manage as many branches as you can remember, however I must say that the learning curve is still quite steep, mainly because it requires a fundamental Ouch.
The values of __FILE__ and __LINE__ can be manipulated with the #line directive. #error In C Example External links Wikibooks has a book on the topic of: C Programming/Preprocessor ISO/IEC 9899. See comments at get_last_object." #endif If you have several configuration parameters that must be set up by the installation in a consistent way, you can use conditionals to detect an inconsistency With the "- x" command-line flag, this message is an error.
Similar topics Confused by compiler warning #warning preprocessor command warning : no new line at end of file Warning instaling python-2.3.5 on FreeBSD 5.3 VC6->VC7 Warning C4005 with Warning lvl=3 #pragma Shell line without target error There is no target to which this shell line belongs. #error In C You would likely miss this 11th warning when it shows up in the middle of your debugging session. #error C++ warning The template cannot be read, so the makefile starts out empty.
Reply Nigel Jones says: September 28, 2011 at 4:03 am Very interesting. You can however write a series of adjacent string constants and stringified arguments: the C compiler will then combine all the adjacent string constants into one long string. Browse other questions tagged c-preprocessor or ask your own question. Otherwise the makefile is too large or there are too many header files. C Preprocessor Message
The following table lists the preprocessor directives and gives a brief description of each. C99 introduced a few standard #pragma directives, taking the form #pragma STDC ..., which are used to control the floating-point implementation. Unexpected what error The what is either "end" or "endif" and there was no previous %foreach, %while or %if directive. by SoftBank Group Corp.
This allows source code debugging, when C is used as target language of a compiler, for a totally different language. Otherwise, if you really want to use the preprocessor, you can do this: #ifdef RELEASE #error "You have to use the Debug mode" #endif share|improve this answer answered Aug 24 at used in /* simple echo example */ #define ONE #ifdef ONE // Check of ONE is defined #echo ONE is defined // Output Informational message #elseif TWO #echo TWO is defined Error Directive Must Use C++ For The Type Iostream Variadic macros are particularly useful when writing wrappers to functions taking a variable number of parameters, such as printf, for example when logging warnings and errors.
Internal whitespace sequences are each replaced with a single space. The content you requested has been removed. If the filename is enclosed within angle brackets, the file is searched for in the standard compiler include paths. Example: #define str(s) #s str(p = "foo\n";) // outputs "p = \"foo\\n\";" str(\n) // outputs "\n" If you want to stringify the expansion of a macro argument, you have to use
By convention, include files are given a .h extension, and files not included by others are given a .c extension. reminder) that I have some experimental code in the image. Reply Lawrence P says: November 19, 2013 at 1:55 pm Thank you for this great tip! Test: unmatched quote "text" error Pairs of single- or double-quotes are used to delimit strings which contain whitespace.
Object file extensions are defined by the .TYPE.OBJ macro. #elif with no #if warning An "#elif" directive in a C source file didn't have a preceding "#if". #else with Some compilers have '#pragma message' but I don't know about Sun's. Otherwise, it tests if a macro _WIN32 is defined instead. Use XYZ instead." (Microsoft) #pragma message("Do not use ABC, which is deprecated.
Exec 'command' failed error The %exec command directive could not be executed. If you aren't particularly familiar with #error, then I suggest you read the article. 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. Their exact behavior may depend on command-line flags supplied on invocation.
When I feel the bug is fixed I squash my bug fix branch (combine all the commits from the bug fix branch into one) and begin reviewing -- depending on how