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Convert array to comma-separated integers

Mackerel answered on November 4, 2022 Popularity 7/10 Helpfulness 2/10

answer Convert array to comma-separated integers

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Convert array to comma-separated integers

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// Convert array to comma-separated integers

fn main() {
    let a = [1, 12, 42];
    println!("{}", a.map(|i| i.to_string()).join(", "))
}

Popularity 7/10 Helpfulness 2/10 Language rust

Source: Grepper

Tags: rust

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Contributed on Nov 04 2022

Mackerel

0 Answers Avg Quality 2/10

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Convert array to comma-separated integers

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// Convert array to comma-separated integers
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char *join_int_list(const unsigned int *list, size_t n_items) {
    enum { SIZEOF_INT_AS_STR = sizeof("4294967295,")-1 };
    char *space = malloc(SIZEOF_INT_AS_STR * n_items);
    if (space != 0) {
        size_t i;
        char *pad = "";
        char *dst = space;
        char *end = space + SIZEOF_INT_AS_STR * n_items;
        for (i = 0; i < n_items; i++) {
            snprintf(dst, end - dst, "%s%u", pad, list[i]);
            pad = ", ";
            dst += strlen(dst);
        }
        space = realloc(space, dst - space + 1);
    }
    return(space);
}

int main(void) {
    static unsigned int array[]= { 1, 12, 42 };
    char *str = join_int_list(array, sizeof(array)/sizeof(array[0]));
    printf("join: %s\n", str);
    free(str);
    return(0);
}

Popularity 5/10 Helpfulness 1/10 Language c

Source: Grepper

Tags: c

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Contributed on Mar 27 2023

Mackerel

0 Answers Avg Quality 2/10

Convert array to comma-separated integers

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