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Warning: file.c(212): warning: C4487E: read from variable 'config' with offset out of bounds
I'm getting this warning with the following code:
uint16_t config = 100; uint8_t configMsg[2][4]; memcpy(configMsg[0], &config, sizeof(configMsg[0]));
But I don't understand why. Anyone have any insights? It compiles w/o warning if I sub in memcpy(configMsg[0], &config, 3);
But if I sub in memcpy(configMsg[0], &config, 4); it generates the warning again.
How about doing the MIN() of both. The warning comes from doing something so patently wrong the compiler can see it at build time.
memcpy() is one of the thing the compiler turns into an intrinsic for small copies.