Save specific values from a file

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Contents of the file:

df:bd:89:F1:D4:53 50 20.0

76:1f:02:8f:7d:C8 75 15.0

37:77:ac:10:4e:from 90 -10.5

21:33:ac:63:F7:cd 60 30.0

79:fa:3d:ca:4b:3a 65 25.5

bb:7c:72:ab:ad:ce 35 -5.5

22:db:ed:73:A7:4c 95 20.0

A5:05:92:fa:47:cb 85 35.0

C6:9d:7b:7a:3e:91 15 -25.5

E4:58:0e:30:C2:cf 70 45.5

how I can store the values in front of the hexadecimal codes in a variable(i.e., how can I give Skip of the hexadecimal codes).

c

  • Do you want to save all the data after the first space? It will always be 2 values or this amount of values may vary?

1 answer

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For example input provided:

#include <stdio.h>

int main(void) {
    FILE arq;
    float a, b;
    arq = fopen("ficheiro.txt", "r");
    while (fscanf(arq, "%*s %f %f", &a, &b) != EOF)
        printf("t%f\t%f\n", a, b);
    fclose(arq);
    return 0;
}

Note the %*s in the format it indicates for the scanf ignore this entry, in case the first, not assigning to anything.

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