Access violation while using fscanf_s. Ask Question Asked 9 years, 4 months ago. Active 9 years, 4 months ago. Viewed 4k times 4. I want to read a file in a specific format, so I use fscanf_s and a while loop. But as soon as fscanf_s is processed, the program crashes with an access violation (0xC0000005). Here’s the code: …
fscanf & fscanf_s are both part of the C runtime library, and as such, they don’t raise an exception on failure. To raise an exception, you need to either (a) wrap these functions in c++ code, throwning the exceptions yourself when an error is detected. (b) just use c++ file-handling routines. i.e fstream (fstream help cpluspls.com), 6/1/2020 · N/A: N/A: N/A: N/A: N/A: s: matches a sequence of non-whitespace characters (a string) . If width specifier is used, matches up to width or until the first whitespace character, whichever appears first. Always stores a null character in addition to the characters matched (so the argument array must have room for at least width+1 characters) [set]matches a non-empty sequence of character from …
4/17/2010 · I’m trying to use fscanf_s and fgetc to read an OBJ file, but when I debug I get the error: Unhandled exception at 0xfefefefe in Final Project.exe: 0xC0000005: Access violation .
The default invalid parameter handler raises an Access Violation exception, which normally makes continued execution impossible. In Debug mode , an assertion is also raised. Also, if Watson crash reporting is enabled, which is the default, the application will crash and prompt the user if they want to load the crash dump to Microsoft for analysis.
Learn more about: scanf_s, _scanf_s_l, wscanf_s, _wscanf_s_l. The console isn’t supported in Universal Windows Platform (UWP) apps. The standard stream handles stdin, stdout, and stderr must be redirected before C run-time functions can use them in UWP apps. For additional compatibility information, see Compatibility.. Example
