2
votes
Accepted
Pset4 Recovery Produces Corrupt Null Files & Skips An Image
"Ready, fire, aim!"
The problem lies here:
jpg = fopen(filename, "w");
sprintf(filename, "%03i.jpg", numfound);
The sprintf command builds the name of ...
- 69.3k
2
votes
Accepted
Week 2 CRACK: Erratic behavior with NULL '\0' when printing combinations of letters
This is a textbook example of "undefined behaviour". It gives different results on different machines because, well, there's a bug and there is no way to predict when or how it will "work" or fail.
...
- 28.6k
1
vote
Accepted
pset2 Vigenere null pointer passed as argument 1, which is declared to never be null
Welcome to the community. Your program is a real mess of functions for a relatively simple task, the purpose of the use of functions is to perform specific tasks outside of main (), in order to keep ...
- 5,179
1
vote
Accepted
CS50 Pset4 Recover card.raw only NULL
You read the first 512 bytes (I used an array of uint8_t instead of int, but that should be possible as well), and print the first integer, representing the first 4 bytes.
If you throw card.raw int ...
- 21k
1
vote
Accepted
What does time(NULL) mean when used with srand48?
According to this answer on Stackoverflow, the function time is normally passed a pointer to a time_t object (or struct) which it fills up with the current time. If you pass it null, however, you will ...
- 1,223
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