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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
STRTOIMAX(3P) POSIX Programmer's Manual STRTOIMAX(3P)
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.
strtoimax, strtoumax — convert string to integer type
#include <inttypes.h>
intmax_t strtoimax(const char *restrict nptr, char **restrict endptr,
int base);
uintmax_t strtoumax(const char *restrict nptr, char **restrict endptr,
int base);
The functionality described on this reference page is aligned with
the ISO C standard. Any conflict between the requirements described
here and the ISO C standard is unintentional. This volume of
POSIX.1‐2008 defers to the ISO C standard.
These functions shall be equivalent to the strtol(), strtoll(),
strtoul(), and strtoull() functions, except that the initial portion
of the string shall be converted to intmax_t and uintmax_t
representation, respectively.
These functions shall return the converted value, if any.
If no conversion could be performed, zero shall be returned and errno
may be set to [EINVAL].
If the value of base is not supported, 0 shall be returned and errno
shall be set to [EINVAL].
If the correct value is outside the range of representable values,
{INTMAX_MAX}, {INTMAX_MIN}, or {UINTMAX_MAX} shall be returned
(according to the return type and sign of the value, if any), and
errno shall be set to [ERANGE].
These functions shall fail if:
EINVAL The value of base is not supported.
ERANGE The value to be returned is not representable.
These functions may fail if:
EINVAL No conversion could be performed.
The following sections are informative.
None.
Since the value of *endptr is unspecified if the value of base is not
supported, applications should either ensure that base has a
supported value (0 or between 2 and 36) before the call, or check for
an [EINVAL] error before examining *endptr.
None.
None.
strtol(3p), strtoul(3p)
The Base Definitions volume of POSIX.1‐2008, inttypes.h(0p)
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 .
IEEE/The Open Group 2013 STRTOIMAX(3P)
Pages that refer to this page: inttypes.h(0p), strtoumax(3p)