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string.h.3 (1745B)
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1 .TH string.h 3
2 .SH NAME
3 string.h - string operations
4 .SH SYNOPSIS
5 #include <string.h>
6
7 The string.h header declares the following functions:
8
9 .nf
10 void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
11 void *memmove(void *s1, const void *s2, size_t n);
12 char *strcpy(char *restrict s1, const char *restrict s2);
13 char *strncpy(char *restrict s1, const char *restrict s2, size_t n);
14 char *strcat(chaar *restrict s1, const char *restrict s2);
15 char *strncat(chaar *restrict s1, const char *restrict s2, size_t n);
16 int memcmp(const void *s1, const void *s2, size_t n);
17 int strcmp(const char *s1, const char *s2);
18 int strcoll(const char *s1, const char *s2);
19 int strncmp(const char *s1, const char *s2, size_t n);
20 size_t strxfrm(char *restrict s1, const char *restrict s2, size_t n);
21 void *memchr(const void *s, int c, size_t n);
22 char *strchr(const char *s, int c);
23 size_t strcspn(const char *s1, const char *s2);
24 char *strpbrk(const char *s1, const char *s2);
25 char *strrchr(const char *s, int c);
26 size_t strspn(const char *s1, const char *s2);
27 char *strstr(const char *s1, const char *s2);
28 char *strtok(char *restrict s1, const char *restrict s2);
29 void *memset(void *s, int c, size_t n);
30 char *strerror(int errnum);
31 size_t strlen(const char *s);
32 .fi
33 .SH DESCRIPTION
34 The string.h header defines the macro
35 .B NULL
36 and the type
37 .BR size_t .
38 .SH STANDARDS
39 ISO/IEC 9899:1999 Section 7.21.1
40 .SH SEE ALSO
41 .BR memchr (3)
42 .BR memcmp (3)
43 .BR memcpy (3)
44 .BR memmove (3)
45 .BR memset (3)
46 .BR strcat (3)
47 .BR strchr (3)
48 .BR strcmp (3)
49 .BR strcoll (3)
50 .BR strcpy (3)
51 .BR strcspn (3)
52 .BR strerror (3)
53 .BR strlen (3)
54 .BR strncat (3)
55 .BR strncmp (3)
56 .BR strncpy (3)
57 .BR strpbrk (3)
58 .BR strrchr (3)
59 .BR strspn (3)
60 .BR strstr (3)
61 .BR strtok (3)
62 .BR strxfrm (3)