内存分配

typedef struct {
    float *numbers;
    float val1;
    float val2;
} Values; 

#define MAX_SIZE 16

int main() {
    Values val[MAX_SIZE];
    float myfloats[MAX_SIZE];
    int i;
    for(i=0;i<MAX_SIZE;i++) {
        val[i].numbers=&myfloats[i];
    }
    return 0;
 }

\'numbers\'

\'numbers\'

floats

#include <malloc.h>

typedef struct {
    float *numbers;
    float val1;
    float val2;
} Values; 

#define MAX_SIZE 16

int main() {
    Values val[MAX_SIZE];
    size_t numberOfFloats = 10;
    int i;

    // for each of the members of the val array
    for(i=0;i<MAX_SIZE;i++) {
        // allocate using calloc (this will set all of the floats to 0.0)
        val[i].numbers=calloc(numberOfFloats,sizeof(float));

        // check the allocation worked...
        if(!val[i].numbers) {
            // insert proper error handling here.
            printf(\"oops\\n\");
            return -1;
        }

    }

    // you access the variables like this
    for(i=0;i<MAX_SIZE;i++) {
        int number;
        for(number=0; number < numberOfFloats; number++) {
            printf(\"Value %d, Number %d = %f\\n\",i,number,val[i].numbers[number]);
        }
    }

    // don\'t forget to play nice and clean up afterwards
    for(i=0;i<MAX_SIZE;i++) {
        free(val[i].numbers);
    }
    return 0;
 }

#include <stdlib.h>

/* ... */

val[0].numbers = malloc(1 * sizeof(float)); /* \"1 * \" for clarity... */