mirror of https://github.com/mkerrisk/man-pages
103 lines
3.4 KiB
Plaintext
103 lines
3.4 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "<string.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" <string.h>
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.SH NAME
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string.h \- string operations
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.SH SYNOPSIS
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.LP
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\fB#include <string.h>\fP
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.SH DESCRIPTION
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.LP
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Some of the functionality described on this reference page extends
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the ISO\ C standard. Applications shall define
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the appropriate feature test macro (see the System Interfaces volume
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of IEEE\ Std\ 1003.1-2001, Section 2.2, The Compilation Environment)
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to enable the visibility of these symbols in this
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header.
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.LP
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The \fI<string.h>\fP header shall define the following:
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.TP 7
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NULL
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Null pointer constant.
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.TP 7
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\fBsize_t\fP
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As described in \fI<stddef.h>\fP .
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.sp
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.LP
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The following shall be declared as functions and may also be defined
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as macros. Function prototypes shall be provided.
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.sp
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.RS
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.nf
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\fB
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void *memccpy(void *restrict, const void *restrict, int, size_t);
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void *memchr(const void *, int, size_t);
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int memcmp(const void *, const void *, size_t);
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void *memcpy(void *restrict, const void *restrict, size_t);
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void *memmove(void *, const void *, size_t);
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void *memset(void *, int, size_t);
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char *strcat(char *restrict, const char *restrict);
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char *strchr(const char *, int);
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int strcmp(const char *, const char *);
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int strcoll(const char *, const char *);
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char *strcpy(char *restrict, const char *restrict);
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size_t strcspn(const char *, const char *);
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char *strdup(const char *);
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char *strerror(int);
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int *strerror_r(int, char *, size_t);
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size_t strlen(const char *);
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char *strncat(char *restrict, const char *restrict, size_t);
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int strncmp(const char *, const char *, size_t);
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char *strncpy(char *restrict, const char *restrict, size_t);
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char *strpbrk(const char *, const char *);
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char *strrchr(const char *, int);
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size_t strspn(const char *, const char *);
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char *strstr(const char *, const char *);
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char *strtok(char *restrict, const char *restrict);
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char *strtok_r(char *, const char *, char **);
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size_t strxfrm(char *restrict, const char *restrict, size_t);
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\fP
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.fi
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.RE
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.LP
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Inclusion of the \fI<string.h>\fP header may also make visible all
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symbols from \fI<stddef.h>\fP.
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.LP
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\fIThe following sections are informative.\fP
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fI<stddef.h>\fP , \fI<sys/types.h>\fP , the System
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Interfaces volume of IEEE\ Std\ 1003.1-2001, \fImemccpy\fP(), \fImemchr\fP(),
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\fImemcmp\fP(), \fImemcpy\fP(), \fImemmove\fP(), \fImemset\fP(), \fIstrcat\fP(),
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\fIstrchr\fP(), \fIstrcmp\fP(), \fIstrcoll\fP(), \fIstrcpy\fP(), \fIstrcspn\fP(),
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\fIstrdup\fP(), \fIstrerror\fP(), \fIstrlen\fP(), \fIstrncat\fP(),
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\fIstrncmp\fP(), \fIstrncpy\fP(), \fIstrpbrk\fP(), \fIstrrchr\fP(),
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\fIstrspn\fP(), \fIstrstr\fP(), \fIstrtok\fP(), \fIstrxfrm\fP()
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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