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  1. #include <stdlib.h>
  2. #include <unistd.h>
  3. #include <stdio.h>
  4.  
  5. int		ft_strlen(char *str)
  6. {
  7. 	int i;
  8.  
  9. 	i = 0;
  10. 	while (str[i])
  11. 	{
  12. 		i++;
  13. 	}
  14. 	return (i);
  15. }
  16.  
  17. int		ft_strlen_sum(int size, char **strs)
  18. {
  19. 	int	i;
  20. 	int	sum;
  21.  
  22. 	sum = 0;
  23. 	i = 1;
  24. 	while (i < size)
  25. 	{
  26. 		sum += ft_strlen(strs[i]);
  27. 		i++;
  28. 	}
  29. 	return (sum);
  30. }
  31.  
  32. char	*ft_strcat(char *s1, char *s2)
  33. {
  34. 	int	i;
  35. 	int	j;
  36.  
  37. 	i = 0;
  38. 	while (s1[i])
  39. 	{
  40. 		i++;
  41. 	}
  42. 	j = 0;
  43. 	while (s2[j])
  44. 	{
  45. 		s1[i] = s2[j];
  46. 		i++;
  47. 		j++;
  48. 	}
  49. 	return (s1);
  50. }
  51.  
  52. char	*ft_strjoin(int size, char **strs, char *sep)
  53. {
  54. 	int		i;
  55. 	char	*tab;
  56. 	int		lengthsum;
  57.  
  58. 	lengthsum = ft_strlen_sum(size, strs);
  59. 	lengthsum += ft_strlen(sep) * (size - 1);
  60. 	tab = (char *)malloc(sizeof(char) * lengthsum);
  61. 	if (size == 0)
  62. 		return (tab);
  63. 	i = 1;
  64. 	while (i < size)
  65. 	{
  66. 		ft_strcat(tab, strs[i]);
  67. 		if (i != size - 1)
  68. 			ft_strcat(tab, sep);
  69. 		i++;
  70. 	}
  71. 	return (tab);
  72. }
  73.  
  74. int		main(int argc, char *argv[])
  75. {
  76. 	char	*str;
  77. 	int		i;
  78. 	char	sep[2];
  79.  
  80. 	sep[0] = ' ';
  81. 	sep[1] = ',';
  82. 	i = 0;
  83. 	str = ft_strjoin(argc, argv, sep);
  84. 	printf("%d\n", ft_strlen(str));
  85. 	write(1, str, ft_strlen(str));
  86. }
Success #stdin #stdout 0s 4516KB
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https://ideone.com/hiblLC
language:
C (clang 8.0)
created:
5 years ago
visibility:
public

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