105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_strdup.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: tosuman </var/spool/mail/tosuman> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2023/03/30 20:53:45 by tosuman #+# #+# */
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/* Updated: 2023/03/30 20:53:45 by tosuman ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include <stdlib.h>
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char *ft_strcpy(char *dest, char *src)
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{
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char *o_dest;
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o_dest = dest;
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while (*src)
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*dest++ = *src++;
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*dest = 0;
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return (o_dest);
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}
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int ft_strlen(char *str)
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{
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int size;
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size = 0;
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while (*str++)
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++size;
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return (size);
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}
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char *ft_strdup(char *src)
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{
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char *new_str;
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new_str = malloc(sizeof(char *) * ft_strlen(src));
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ft_strcpy(new_str, src);
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return (new_str);
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}
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/* ////
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#include <stdio.h>
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#include <string.h>
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int main(void)
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{
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char *str1;
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char *stra;
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char *strb;
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char *str2;
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char *str3;
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char *str4;
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char *str_std1;
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char *str_stda;
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char *str_stdb;
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char *str_std2;
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char *str_std3;
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char *str_std4;
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printf("### Testing ft_strdup ###\n");
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str1 = "The String";
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stra = "The String";
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strb = str1;
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str2 = ft_strdup(str1);
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str3 = ft_strdup(str1);
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str4 = ft_strdup(str2);
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printf("str1 value: %s, str1 address: %p\n", str1, str1);
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printf("stra value: %s, stra address: %p (==str1)\n", stra, stra);
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printf("strb value: %s, strb address: %p (==str1)\n", strb, strb);
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printf("str2 value: %s, str2 address: %p (diff)\n", str2, str2);
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printf("str3 value: %s, str3 address: %p (diff)\n", str3, str3);
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printf("str4 value: %s, str4 address: %p (diff)\n", str4, str4);
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free(str2);
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free(str3);
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free(str4);
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printf("\n### Testing strdup ###\n");
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str_std1 = "The Standard String";
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str_stda = "The Standard String";
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str_stdb = str_std1;
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str_std2 = strdup(str_std1);
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str_std3 = strdup(str_std1);
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str_std4 = strdup(str_std2);
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printf("str_std1 value: %s, str_std1 address: %p\n",
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str_std1, str_std1);
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printf("str_stda value: %s, str_stda address: %p (==str_std1)\n",
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str_stda, str_stda);
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printf("str_stdb value: %s, str_stdb address: %p (==str_std1)\n",
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str_stdb, str_stdb);
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printf("str_std2 value: %s, str_std2 address: %p (diff)\n",
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str_std2, str_std2);
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printf("str_std3 value: %s, str_std3 address: %p (diff)\n",
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str_std3, str_std3);
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printf("str_std4 value: %s, str_std4 address: %p (diff)\n",
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str_std4, str_std4);
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free(str_std2);
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free(str_std3);
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free(str_std4);
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return (0);
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}
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*/ ////
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