C
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x
33
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typedef int error_t;
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typedef struct vector_s
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{
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long *values;
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long dim;
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} vector_t;
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typedef struct vec_array_s
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{
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vector_t **vectors;
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long length;
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} vec_array_t;
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error_t vec_array_store(vec_array_t *array, vector_t *vec)
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{
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array->length = array->length + 1;
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(*array).vectors = realloc((*array).vectors, (*array).length *(sizeof(struct vector_s)));
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array->vectors[array->length-1] = vec;
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}
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int main(void) {
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vector_t hoge;
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vec_array_t a = {0, 0};
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vec_array_store(&a, &hoge);
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printf("%ld\n", a.length);
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printf("%p %p\n", (void*)&hoge, (void*)a.vectors[0]);
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return 0;
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}
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$ gcc prog.c -Wall -Wextra -std=gnu11
Start
prog.c: In function 'vec_array_store': prog.c:23:1: warning: control reaches end of non-void function [-Wreturn-type] 23 | } | ^
1 0x7ffdd189e720 0x7ffdd189e720
0
Finish