CODEWITHSUNDEEP
carrayssorting
Daksh Shah
Daksh Shah

Reputation: 3113

qsort: Sort 1 Dimension of 3D array in C

I have a 3D array: float input[2][50][1000];

I want to quick sort it from: 

qsort (x, sizeof(x)/sizeof(*x), sizeof(*x), comp);

where comp is

int comp (const void * elem1, const void * elem2) {
    float f = *((float*)elem1);
    float s = *((float*)elem2);
    if (f > s) return  1;
    if (f < s) return -1;
    return 0;
}

I just want to sort 1 dimension of my 3D array, i.e I want to sort input[0][temp][0], input[0][temp][1], input[0][temp][2] and so on.

Ques: What do I replace x with? Forgive me if it sounds stupid

Upvotes: 1

Views: 155

Answers (1)

BLUEPIXY
BLUEPIXY

Reputation: 40145

float (*x)[1000] = &input[0][temp];
qsort (x, sizeof(*x)/sizeof(**x), sizeof(**x), comp);

Upvotes: 1

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