sprintf_s was not declared in this scope
It’s not standard, you won’t find such function on Linux. Standard function snprintf should have a similar semantics.
tr24731
Why is rsize_t defined?
You’ve encountered it in Microsoft’s C++ standard library, but it actually comes from C. C 11, to be precise, which means it’s not technically a part of C++. C 11 standard, Annex K introduced all the _s functions and the corresponding typedefs, including rsize_t. There is also a “maximum value” macro RSIZE_MAX which is large … Read more
Difference between scanf and scanf_s
It is a function that belongs specifically to the Microsoft compiler. scanf originally just reads whatever console input you type and assign it to a type of variable. If you have an array called first_name[5] and you use scanf for “Alex”, there is no problem. If you have the same array and assign “Alexander”, you … Read more
How to go from fopen to fopen_s
fopen_s is a “secure” variant of fopen with a few extra options for the mode string and a different method for returning the stream pointer and the error code. It was invented by Microsoft and made its way into the C Standard: it is documented in annex K.3.5.2.2 of the most recent draft of the … Read more
Do you use the TR 24731 ‘safe’ functions? [closed]
I have been a vocal critic of these TRs since their inception (when it was a single TR) and would never use them in any of my software. They mask symptoms instead of addressing causes and it is my opinion that if anything they will have a negative impact on software design as they provide … Read more