-
Notifications
You must be signed in to change notification settings - Fork 0
/
func_lib1.c
124 lines (109 loc) · 1.96 KB
/
func_lib1.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
#include "shell.h"
/**
* _strcat - concatenates two strings
* @dest: first string
* @src: second string
* Return: pointer
*/
char *_strcat(char *dest, char *src)
{
char *new_string;
unsigned int l1, l2, combined_len, i, j;
l1 = 0;
l2 = 0;
if (!dest)
l1 = 0;
else
{
for (l1 = 0; dest[l1]; l1++)
;
}
if (!src)
l2 = 0;
else
{
for (l2 = 0; src[l2]; l2++)
;
}
combined_len = l1 + l2 + 2;
new_string = malloc(combined_len * sizeof(char));
if (!new_string)
return (NULL);
/* copy the first string into the new array */
for (i = 0; i < l1; i++)
new_string[i] = dest[i];
new_string[i] = '/';
for (j = 0; j < l2; j++)
new_string[i + 1 + j] = src[j];
new_string[l1 + l2 + 1] = '\0';
return (new_string);
}
/**
* _strlen - returns the length of a string
* @s: string to be measured
* Return: string length
*/
unsigned int _strlen(char *s)
{
unsigned int i;
i = 0;
for (i = 0; s[i]; i++)
;
return (i);
}
/**
* _strcmp - compares two strings
* @s1: first string
* @s2: second string
* Return: 0 on success, any other output is an error
*/
int _strcmp(char *s1, char *s2)
{
int i;
i = 0;
while (s1[i] == s2[i])
{
if (s1[i] == '\0')
return (0);
i++;
}
return (s1[i] - s2[i]);
}
/**
* _strdup - creates a copy of a string
* @duplicate: target string
* Return: the replicated string
*/
char *_strdup(char *duplicate)
{
char *new;
int l = 0, i;
if (duplicate == 0)
return (NULL);
for (; duplicate[l]; l++)
;
/* '+1' for the null terminator */
new = malloc((l + 1) * sizeof(char));
for (i = 0; i <= l; i++)
new[i] = duplicate[i];
return (new);
}
/**
* str_out - writes to standard output
* @s: string to be written
*
* Return: length of chars printed or -1 on failure
*/
ssize_t str_out(char *string)
{
ssize_t str_len;
ssize_t output;
str_len = _strlen(string);
output = write(STDOUT_FILENO, string, str_len);
if (output != str_len)
{
perror("Fatal Error");
return (-1);
}
return (output);
}