49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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enum HANDLE_STATE {
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HANDLE_CREAT,
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HANDLE_DESTR
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};
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struct Array_uint64 { size_t count; uint64_t *v; };
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static inline void Array_uint64_lifetime_handler(
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enum HANDLE_STATE state,
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struct Array_uint64 *self,
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void *data) {
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if(state == HANDLE_CREAT) {
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self->count = *(size_t*) data;
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printf("self: %zd, count: %d", self, self->count);
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self->v = (uint64_t*) calloc(self->count, sizeof(uint64_t));
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} else if (state == HANDLE_DESTR) {
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if(self->v) free(self->v);
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}
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};
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int main() {
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// XXX: size_t n = 0;
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int n; // FIXME: BUG
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printf("Number of elements to sum: ");
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// XXX: scanf(" %zu", &n);
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scanf(" %d", &n); // FIXME: BUG
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[[gnu::always_inline]] inline void data_cleanuper(struct Array_uint64 *v) {
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Array_uint64_lifetime_handler(HANDLE_DESTR, v, ((void *)0) );
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}
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[[gnu::cleanup(data_cleanuper)]] struct Array_uint64 data;
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Array_uint64_lifetime_handler(HANDLE_CREAT, & data, &n);;
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for(int i = 0; i < data.count; ++i) {
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scanf(" %d", &n);
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data.v[i] = n;
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}
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n = 0; for(int i = 0; i < data.count; ++i) n += data.v[i];
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printf("Sum: %d\n", n);
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return 0;
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}
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