Been doing some development using VSMicro on VS 2022 for ESP32 and love the tool chain.

But recently I had to switch to ATtiny3216 and found one annoyance that is growing as the code base grows.

Using
Windows 10
Visual Studio 2022 v17.3
Visual Micro 2022.611.2204
megaTinyCore v2.5.11 https://github.com/SpenceKonde/ATTinyCore ;

The following code compiles and works, but the IDE reports memset as undefined with red squiggly.

#include <Arduino.h>
#include <string.h>

void setup()
{
#if defined(_VMICRO_INTELLISENSE)
    byte buf[5] = { 0 };
    // IDE reports memset as "identifier is undefined"
    memset(buf, 0xFF, sizeof(buf)); 
#endif
}

void loop()
{

}
 

Let me know if I missed something.

PS: Switching to ESP32 board does not suffer from this.

Best wishes

Ok

The following code compiles and I receive "memset worked" in terminal.

Find build log attached.

#include <Arduino.h>
#include <string.h>

void setup()
{
    byte buffer[5] = { 0 };
    memset(buffer, 0xFF, sizeof(buffer));

    Serial.begin(9600);
    if (buffer[0] == 0xFF)
    {
        Serial.println("memset worked");
    }
}

void loop()
{
    // put your main code here, to run repeatedly:
}
 

Thank you for the new release! 
Looking good.