49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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/*
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* Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1
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* as published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "count.h"
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char *count_to_number(uint32_t num)
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{
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uint32_t ptr = 0, size = 0;
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uint32_t written = 0, i;
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int new_line_every_n_numbers = 30;
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char *s;
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for (i=0; i < num; ++i) {
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size += snprintf(NULL, 0, "%u ", i);
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if (i > 0 && i % new_line_every_n_numbers == 0)
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size++;
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}
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size++; /* one for null char */
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s = calloc(size, sizeof(char));
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if (!s)
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goto out;
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for (i=0; i < num; ++i) {
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written = sprintf(&s[ptr], "%u ", i);
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ptr += written;
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if (i > 0 && i % new_line_every_n_numbers == 0) {
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sprintf(&s[ptr], "\n");
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ptr++;
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}
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}
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out:
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return s;
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}
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