projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
| 2 | .\" | |
| 5fbde956 | 3 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
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4 | .\" |
| 5 | .\" References consulted: | |
| 6 | .\" Linux libc source code | |
| 7 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
| 8 | .\" 386BSD man pages | |
| 9 | .\" Modified Sat Jul 24 18:49:59 1993 by Rik Faith (faith@cs.unc.edu) | |
| 4c1c5274 | 10 | .TH memmove 3 (date) "Linux man-pages (unreleased)" |
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11 | .SH NAME |
| 12 | memmove \- copy memory area | |
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13 | .SH LIBRARY |
| 14 | Standard C library | |
| 8fc3b2cf | 15 | .RI ( libc ", " \-lc ) |
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16 | .SH SYNOPSIS |
| 17 | .nf | |
| 18 | .B #include <string.h> | |
| 68e4db0a | 19 | .PP |
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20 | .BI "void *memmove(void *" dest ", const void *" src ", size_t " n ); |
| 21 | .fi | |
| 22 | .SH DESCRIPTION | |
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23 | The |
| 24 | .BR memmove () | |
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25 | function copies |
| 26 | .I n | |
| 27 | bytes from memory area | |
| 28 | .I src | |
| 29 | to memory area | |
| 30 | .IR dest . | |
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31 | The memory areas may overlap: copying takes place as though |
| 32 | the bytes in | |
| 33 | .I src | |
| 34 | are first copied into a temporary array that does not overlap | |
| 35 | .I src | |
| 36 | or | |
| 4bfc3573 | 37 | .IR dest , |
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38 | and the bytes are then copied from the temporary array to |
| 39 | .IR dest . | |
| 47297adb | 40 | .SH RETURN VALUE |
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41 | The |
| 42 | .BR memmove () | |
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43 | function returns a pointer to |
| 44 | .IR dest . | |
| 69351e5a | 45 | .SH ATTRIBUTES |
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46 | For an explanation of the terms used in this section, see |
| 47 | .BR attributes (7). | |
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48 | .ad l |
| 49 | .nh | |
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50 | .TS |
| 51 | allbox; | |
| c466875e | 52 | lbx lb lb |
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53 | l l l. |
| 54 | Interface Attribute Value | |
| 55 | T{ | |
| 69351e5a | 56 | .BR memmove () |
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57 | T} Thread safety MT-Safe |
| 58 | .TE | |
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59 | .hy |
| 60 | .ad | |
| 61 | .sp 1 | |
| 3113c7f3 | 62 | .SH STANDARDS |
| 857657de | 63 | POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. |
| 47297adb | 64 | .SH SEE ALSO |
| fea681da | 65 | .BR bcopy (3), |
| 879091c9 | 66 | .BR bstring (3), |
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67 | .BR memccpy (3), |
| 68 | .BR memcpy (3), | |
| 69 | .BR strcpy (3), | |
| 70 | .BR strncpy (3), | |
| 71 | .BR wmemmove (3) |