47 lines
990 B
C
47 lines
990 B
C
#include "helper.h"
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/**
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* C++ version 0.4 char* style "itoa":
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* Written by Lukás Chmela
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* Released under GPLv3.
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*/
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char* itoa(int value, char* result, int base) {
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// check that the base if valid
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if (base < 2 || base > 36) { *result = '\0'; return result; }
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char* ptr = result, *ptr1 = result, tmp_char;
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int tmp_value;
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do {
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tmp_value = value;
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value /= base;
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*ptr++ = "zyxwvutsrqponmlkjihgfedcba9876543210123456789abcdefghijklmnopqrstuvwxyz" [35 + (tmp_value - value * base)];
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} while ( value );
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// Apply negative sign
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if (tmp_value < 0) *ptr++ = '-';
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*ptr-- = '\0';
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while(ptr1 < ptr) {
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tmp_char = *ptr;
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*ptr--= *ptr1;
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*ptr1++ = tmp_char;
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}
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return result;
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}
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#if __APPLE__ | _WIN32 | _WIN64
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char * strndup (const char *s, size_t n) {
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char *result;
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size_t len = strlen (s);
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if (n < len)
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len = n;
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result = (char *) malloc (len + 1);
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if (!result)
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return 0;
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result[len] = '\0';
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return (char *) memcpy (result, s, len);
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}
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#endif
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