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Results tagged with array
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user 35534
Refers to code that present variables in the form of an array.
1
vote
2
answers
2k
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strcmp doesn't seem to work
I'm trying to compare a char array that I'm assembling to a string and I'm having trouble comparing the strings. … I'm getting the data for the char array as a set of bytes and I'm compiling it into a char array like this:
void messageHandler(char *topic, byte *payload, unsigned int length)
{
char buffer[length]; …
- 357
0
votes
1
answer
573
views
esp32 crashes when trying to dereference a pointer value
listener that is giving me a std::string of my message payload (I want the bytes) and I wrote a function that pulls each of the bytes out and puts them into 32 bit integer variables, adds that integer to an array … = 0;
for (int j = 0; j < 4; j++)
{
chunk <<= 8;
chunk |= raw.at(i + j);
}
chunks[chunkIndex] = chunk;
chunkIndex++;
}
return chunks;
}
And I know that parsing and array …
- 357
1
vote
esp32 crashes when trying to dereference a pointer value
I refactored my code to move the array outside of the scope of the parsing function and passed the pointer in to the parsing function to get populated:
void get32BitInt(WebsocketsMessage message, uint32 …
- 357
0
votes
2
answers
1k
views
Passing a two dimensional array to a function
, (which would mean I'm passing the memory address to the first pointer element of the multi-dimensional array (I think)), but when I do this the pattern runs backwards and is jittery :|
https://vimeo.com … I'm still fairly new to pointers so I'm sure there's something I'm misunderstanding with passing a pointer for a multi-dimensional array, but I thought what I was passing was basically an address of where …
- 357