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diff --git a/man-pages-posix-2013/man3p/a64l.3p b/man-pages-posix-2013/man3p/a64l.3p new file mode 100644 index 0000000..e5632ae --- /dev/null +++ b/man-pages-posix-2013/man3p/a64l.3p @@ -0,0 +1,159 @@ +'\" et +.TH A64L "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual" +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. + +.SH NAME +a64l, +l64a +\(em convert between a 32-bit integer and a radix-64 ASCII string +.SH SYNOPSIS +.LP +.nf +#include <stdlib.h> +.P +long a64l(const char *\fIs\fP); +char *l64a(long \fIvalue\fP); +.fi +.SH DESCRIPTION +These functions maintain numbers stored in radix-64 ASCII +characters. This is a notation by which 32-bit integers can be +represented by up to six characters; each character represents a digit +in radix-64 notation. If the type +.BR long +contains more than 32 bits, only the low-order 32 bits shall be used for +these operations. +.P +The characters used to represent digits are +.BR '.' +(dot) for 0, +.BR '/' +for 1, +.BR '0' +through +.BR '9' +for [2,11], +.BR 'A' +through +.BR 'Z' +for [12,37], and +.BR 'a' +through +.BR 'z' +for [38,63]. +.P +The +\fIa64l\fR() +function shall take a pointer to a radix-64 representation, in which +the first digit is the least significant, and return the corresponding +.BR long +value. If the string pointed to by +.IR s +contains more than six characters, +\fIa64l\fR() +shall use the first six. If the first six characters of the string +contain a null terminator, +\fIa64l\fR() +shall use only characters preceding the null terminator. The +\fIa64l\fR() +function shall scan the character string from left to right with the +least significant digit on the left, decoding each character as a 6-bit +radix-64 number. If the type +.BR long +contains more than 32 bits, the resulting value is sign-extended. The +behavior of +\fIa64l\fR() +is unspecified if +.IR s +is a null pointer or the string pointed to by +.IR s +was not generated by a previous call to +\fIl64a\fR(). +.P +The +\fIl64a\fR() +function shall take a +.BR long +argument and return a pointer to the corresponding radix-64 +representation. The behavior of +\fIl64a\fR() +is unspecified if +.IR value +is negative. +.P +The value returned by +\fIl64a\fR() +may be a pointer into a static buffer. Subsequent calls to +\fIl64a\fR() +may overwrite the buffer. +.P +The +\fIl64a\fR() +function need not be thread-safe. +.SH "RETURN VALUE" +Upon successful completion, +\fIa64l\fR() +shall return the +.BR long +value resulting from conversion of the input string. If a string +pointed to by +.IR s +is an empty string, +\fIa64l\fR() +shall return 0L. +.P +The +\fIl64a\fR() +function shall return a pointer to the radix-64 representation. If +.IR value +is 0L, +\fIl64a\fR() +shall return a pointer to an empty string. +.SH ERRORS +No errors are defined. +.LP +.IR "The following sections are informative." +.SH EXAMPLES +None. +.SH "APPLICATION USAGE" +If the type +.BR long +contains more than 32 bits, the result of +\fIa64l\fP(\fIl64a\fP(\fIx\fP)) is +.IR x +in the low-order 32 bits. +.SH RATIONALE +This is not the same encoding as used by either encoding variant +of the +.IR uuencode +utility. +.SH "FUTURE DIRECTIONS" +None. +.SH "SEE ALSO" +.IR "\fIstrtoul\fR\^(\|)" +.P +The Base Definitions volume of POSIX.1\(hy2008, +.IR "\fB<stdlib.h>\fP" +.P +The Shell and Utilities volume of POSIX.1\(hy2008, +.IR "\fIuuencode\fR\^" +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 7, Copyright (C) 2013 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. +(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the +event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.unix.org/online.html . + +Any typographical or formatting errors that appear +in this page are most likely +to have been introduced during the conversion of the source files to +man page format. To report such errors, see +https://www.kernel.org/doc/man-pages/reporting_bugs.html . |