undefined-behavior

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Not getting a segmentation fault when expecting it

I\'m toying with buffer overflows, but I\'m confused by what I\'m finding when running the following simple C program on Mac OS.[详细]

2023-03-18 05:35 分类：问答
The value of out-of-bounds element of an array - should it change on each execution or stay the same?

For the actual question, jump to question part. For an interesting real-world example of undefined behavior, keep reading :)[详细]

2023-03-17 22:57 分类：问答
NaN handled differently in different g++ versions

Consider the following program, which is obviously buggy: #include <cstdio> double test(int n) { if (n % 2 == 0)[详细]

2023-03-17 21:49 分类：问答
How many parameters can I pass by reference in C++, without getting abnormal behavior

I had a problem with a function: int parsearRestricciones(char linea[], unsigned int& x, unsigned int& y, unsigned int& tiempo, char restric[])[详细]

2023-03-17 10:09 分类：问答
What does the C++ standard say about stack overflow?

I took a look at the draft C++0x standard, and as far as I can tell there is nothing about stack overflow in there. Searching for \"stack overflow\" yields no results, and searching for \"stack\" I\'v[详细]

2023-03-17 07:01 分类：问答
Is it well defined to declare an object of the class before its static variable in global space?

Following is a simple case of counting objects: struct A { static int count; A () { ++ count; } }; Now, its object and static member are 开发者_如何学Pythondeclared as:[详细]

2023-03-16 06:21 分类：问答
Bug in quicksort example (K&R C book)?

This quicksort is supposed to sort \"v[left]...v[right] into increasing order\"; copied (without comments) from The C Programming Language by K&R (Second Edition):[详细]

2023-03-15 07:54 分类：问答
C static inline function redefinition rules

Suppose in bar.h there might exist: static inline int fun () { return 2; } And to ensure that fun is always defined foo.h contains the following:[详细]

2023-03-15 00:02 分类：问答
Is enum addition defined in ANSI C?

Is it a guarantee that state after this code will be LX_DONE开发者_如何学Go? enum lx_state { LX_START, LX_MIDDLE, LX_DONE };[详细]

2023-03-12 17:27 分类：问答
Is it undefined behaviour to delete a null void* pointer?

I know that deleteing a null pointer is a no-op: In either alternative, if the value of the operand of delete is the null pointer the operation has no effect.[详细]

2023-03-09 17:01 分类：问答