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Update ex1-reading-fasta/description

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ahypki 2024-04-26 09:21:33 +02:00
parent 4e75e8a9c6
commit fb89c93882
1 changed files with 18 additions and 2 deletions
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ex1-reading-fasta/description
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@ -20,7 +20,7 @@ The FASTA format has to separate parts:
2. sequence
Thus, the excercise for reading FASTA file briefly looks like this:
Thus, the excercise for reading FASTA file, in C, briefly looks like this:
1. Select sequence and save it to a file, e.g. seq.fasta
@ -29,3 +29,19 @@ Thus, the excercise for reading FASTA file briefly looks like this:
https://cplusplus.com/reference/cstdio/fopen/
Tip: Use correct mode.
3. Read the file, line by line, using e.g. snippet of code from here:
https://cplusplus.com/forum/beginner/22558/
4. Check if the lines starts with ';' or with '>', then skip such a line
If the line is OK, then count how many A, C, T, G are in the given line and
save that information.
In order to check if the line starts with a given character you can
simply use index of a string (line[0] - this is first character in the
array line).
The end.