'Is it possible to scan a file in reverse from the last line in C?
I am running a simulation and want to add an option to continue evolving from the last iteration of a previous run. In order to do so, I need to read the last 2 lines of data from a file. Is there any way to do this without using fscanf to scan from the beginning of the file?
Solution 1:[1]
Have the previous run record in another file the ftell() values of the last few lines and other info to note the meta data of the file (e.g. date-time-modified).
A subsequent run can use this info to begin where the prior run left off.
If this side file is missing or does not agree with the current state of things, walk the files with fgetc(), fgets(), etc. to find where to begin again.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | chux - Reinstate Monica |