tr24731

The following code causes an error and kills my application. It makes sense as the buffer is only 10 bytes long and the text is 22 bytes long (buffer overflow). char buffer[10]; int length = sprintf_s( buffer, 10, "1234567890.1234567890." ); How do I catch this error so I can report it instead of crashing my application? Edit: After reading the comments below I went with _snprintf_s. If it returns a -1 value then the buffer was not updated. length = _snprintf_s( buffer, 10, 9, "123456789" ); printf( "1) Length=%d\n", length ); // Length == 9 length = _snprintf_s( buffer, 10, 9, "1234567890

Using the function strcpy in MS Visual Studio gives me an error saying I should use strcpy_s which is safer to use. Is strcpy_s part of the C++ standard? Or is it only part of Microsoft Visual C++? Will code containing strcpy_s only compile in Visual Studio? strcpy_s() is an optional part of C11 (more formally called a "conditional feature". Implementations are permitted to not implement the "Bounds-checking interfaces" standardized in Annex K. Some other conditional features of C11 include: atomics complex types threads variable length arrays (the interesting this about this is that VLAs were

This question already has an answer here: Reading a character with scanf_s 3 answers I'm trying to use scanf_s() to read in multiple values but every time I run the program, I get Unhandled exception at 0x592AD6AC (msvcr120d.dll) in lab 2.exe: 0xC0000005: Access violation writing location 0x00000000. in a popup window. How do I fix this? float inTemp; char inUnit; char outUnit; printf("Please enter the starting temperature with its units and the units\nyou would like to convert to (i.e. 74.5 F C): "); scanf_s("%f %c %c", &inTemp, &inUnit, &outUnit); //takes in all user input (NOT WORKING) You

This is my first post and I have to admit, I am terrible at programming. I am that guy in the class that works his tail off, but can never seem to grasp programming as well as the rest of my classmates. So please be nice, I will try to explain my problem below. I have the following code (comments removed), but when I run it I get a warning similar to the one listed below. Also, when I run the program, the first user inputted value is allowed, but then all of the sudden, it jumps to the end of the program, not allowing me to input the values for the other variables (e.g. the variable "beta"). I

I have a C program that uses sprintf_s . It works fine in Windows, but when I compile my code in Linux it gives this error: sprintf_s was not declared in this scope. Why does this happen and how can I fix it? It's not standard, you won't find such function on Linux. Standard function snprintf should have a similar semantics. sprintf_s is not part of the standard C library, so it is not portable, thus you are not able to use it in Linux. BUT you have snprintf, which is very similar and it should help you to accomplish what you want. sprintf_s is not part of the standard C library, and you won't

I've been trying to look for answer myself, but I can't find one. I want to insert a part of the programming that reads in a string like "Hello" and stores and can display it when I want, so that printf("%s", blah); produces Hello . Here's the code part that's giving me trouble char name[64]; scanf_s("%s", name); printf("Your name is %s", name); I know that printf isn't the problem; the program crashes after something is input after a prompt. Please help? From the specification of fscanf_s() in Annex K.3.5.3.2 of the ISO/IEC 9899:2011 standard: The fscanf_s function is equivalent to fscanf

While answering a question that made use of some functions ( sscanf_s and sprintf_s ) that I thought were not standard C, Daniel Fischer brought to my attention that the functions in question were defined in Annex K. I understand generally that normative means it helps define the standard. But, an annex to the C Standard has traditionally been treated as informative only. Annex K is labeled as normative in the C11 Standard. It defines "safe" functions. Does this mean a compiler that doesn't provided these functions does not conform to the C11 Standard? I only have the draft C11 Standard

While answering this question I compiled the code on Ideone and got this error implicit declaration of function ‘scanf_s’ [-Wimplicit-function-declaration] Isn't stdio.h is the header for scanf_s ? scanf_s is Microsoft-specific. Header is stdio.h but not in GCC. Used to Read formatted data from the standard input stream. These versions of scanf, scanf_s, _scanf_l, wscanf, _wscanf_l have security enhancements Where as Ideone uses GCC because of this only you got undefined reference to scanf_s Mostly You can found this function in windows based compilers like Visual Studio 2008 and Microsoft