I have just started to develop for the iPhone and am in the process of learning Objective-C. I have seen some code that implements a method in the @implementation side of a class like this: -(void)myMethod; { // method body } What makes this interesting is that there is no mention of myMethod in the @interface for the class. I trie...
I have create a class from a string, check it is valid and then check if it responds to a particular method. If it does then I call the method. It all works fine, except I get an annoying compiler warning: "warning: no '-setCurrentID:' method found". Am I doing something wrong here? Is there anyway to tell the compiler all is ok and ...
When I compile function with "gcc -o dene -Wall -ansi -pedantic-errors dene.c" ,gcc emits no error.(can you look a line which starts with char ....,in if loop,) static void remove_negation(char *s,char *s1) { char **cmainp=malloc(sizeof(char*)*1); int len=0;int d=0; int i=0; ...
This large application has a memory pool library which uses a treap internally to store nodes of memory. The treap is implemented using cpp macros, and the complete file trp.h can be found here. I get the following compiler warning when I attempt to compile the application: warning: this decimal constant is unsigned only in ISO C90 By...
I'm getting a warning from GHC when I compile: Warning: This binding for 'pats' shadows an existing binding in the definition of 'match_ignore_ancs' Here's the function: match_ignore_ancs (TextPat _ c) (Text t) = c t match_ignore_ancs (TextPat _ _) (Element _ _ _) = False match_ignore_ancs (ElemPat _ _ _) (Text t) = False match_ig...
This installer project was created back in 2004 and upgraded ever since. There are two offending dll files, which produce a total of 4 errors. I have searched online for this warning message and did not find a permanent fix (I did manage to make it go away once until I have done something like a clean, or built in Release, and then in ...
Assuming this program: #include <stdio.h> #include <string.h> static void ring_pool_alloc(void **p, size_t n) { static unsigned char pool[256], i = 0; *p = &pool[i]; i += n; } int main(void) { char *str; ring_pool_alloc(&str, 7); strcpy(str, "foobar"); printf("%s\n", str); return 0; } ... is it pos...
I have the following generic method: // Load an object from the disk public static T DeserializeObject<T>(String filename) where T : class { XmlSerializer xmlSerializer = new XmlSerializer(typeof(T)); try { TextReader textReader = new StreamReader(filename); var result = (T)xmlSerializer.Deserialize(textRead...
I need a link to a webpage that lists all the error messages and warnings GCC can show; the actual messages, not descriptions. It would be preferable if the list is in the order of most frequently encountered diagnostics. ...
I use the following to work with arguments in my programs, but it seems to just hand me a warning (just a warning): "warning: suggest parentheses around assignment used as truth value" The beginning of the code is as follows: while((++argv)[0] && argv[0][0]=='-'){ while(c =* ++argv[0]) The while(c =* ++argv[0]) part being wh...
I've found a bunch of posts on this problem and have actually managed to removed one of the warnings i was getting from these however one persists. Some context: I'm creating currency converter as an exercise in learning Objective C My Rate class represents a rate that a currency can be converted to or from looks like this: Rate.h //...
I would like the compiler to detect all non-localized strings in my solution. This means any string in an .aspx or .cs file that doesn't come from a resource file. ...
I have a super class like this: class Parent { public: virtual void Function(int param); }; void Parent::Function(int param) { std::cout << param << std::endl; } ..and a sub-class like this: class Child : public Parent { public: void Function(int param); }; void Child::Function(int param) { ;//Do nothing } When I ...
I have a struct like this typedef struct _somestruct { int a; int b; }SOMESTRUCT,*LPSOMESTRUCT; I am creating an object for the struct and trying to print it's address like this int main() { LPSOMESTRUCT val = (LPSOMESTRUCT)malloc(sizeof(SOMESTRUCT)); printf("0%x\n", val); return 0; } ..and I get this warning ...
I get a compiler warning, that I don't understand in that context, when I compile the "Child.cpp" from the following code. (Don't wonder: I stripped off my class declarations to the bare minuum, so the content will not make much sense, but you will see the problem quicker). I get the warning with VS2003 and VS2008 on the highest warning ...
I had a nasty experience with C++ initialization, and I'm trying to see whether there is a real-world example which justifies no warnings from the compiler. The following code compiles correctly, but foo and bar get initialized with uninit values (I assume from the uninitialized parent class). The compilers, both g++ and VS, don't emit ...
In VS 2008, when I compile, I get a large series of The class or CssClass value is not defined messages. How do I get the error/warning code (something like "C0167") for that message, so I can disable it? Answers that won't work: The compiler gives you the warning number. No, it doesn't. See the list of MSDN compiler errors (found a...
I have this typedef: typedef union { unsigned Value; unsigned Timestamp:16; } BITFIELD; and get this compiler warning: BITFIELD bitfield; // read from uninitialised memory - may result in unexpected behaviour bitfield.Timestamp = 12; Now, the warning disappears when I use a short instead of the bitfield: typedef union { ...
Hi, all. I'm working on C program. There is a function which takes two pointer argument and does some complex works. Let's say it as 'cmp'. cmp() is never complex for the illustrative reason. int cmp(struct foo *a, struct foo *b) { return (a->bar == b->bar); } I'd like to make a NULL-check macro, like this: #define SAFE_CMP(a,b...
How can you create a compiler warning (in the model of #error, except as a warning) on purpose in Visual C++ that will show up on the Error List with the correct file and line number? GCC and other compilers offer #warning, but the MSVC compiler does not. The "solution" at http://support.microsoft.com/kb/155196 does not parse in the Vi...