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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% header
/** @file
Retrieve dk4_im_t value from
wchar_t string in hexadecimal notation.
CRT on Windows: Optional, disabling CRT degrades performance.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif
#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Retrieve numeric value from string, hexadecimal notation.
@param rp Pointer to result variable for the found value.
@param src String to check for numeric value.
@param endptr Address of pointer variable.
A pointer to the first character not processed
is stored here.
The function may also store a NULL pointer in this
variable.
The variable points to the correct error position
only if er.ec is DK4_E_SYNTAX.
@param atg Allow trailing garbage:
0=no unprocessable trailing bytes allowed,
1=trailing whitespaces allowed,
2=any trailing characters allowed.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
DK4_E_INVALID_ARGUMENTS if rp or src is NULL,
DK4_E_MATH_OVERFLOW if the number is out of range, or
DK4_E_SYNTAX if src contains illegal characters.
*/
int
dk4ma_input_wc_hex_dk4_im_t(
dk4_im_t *rp,
const wchar_t *src,
const wchar_t **endptr,
int atg,
dk4_er_t *erp
);
#ifdef __cplusplus
}
#endif
%% module
#include "dk4conf.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
#include "dk4maiwhdu.h"
#include "dk4maiwhdi.h"
#include "dk4numco.h"
#include "dk4str8.h"
$!trace-include
int
dk4ma_input_wc_hex_dk4_im_t(
dk4_im_t *rp,
const wchar_t *src,
const wchar_t **endptr,
int atg,
dk4_er_t *erp
)
{
dk4_um_t res;
const wchar_t *ep = NULL;
int back = 0;
$? "+ dk4ma_input_wc_hex_dk4_im_t \"%ls\" %d", src, atg
#if DK4_USE_ASSERT
assert(NULL != rp);
assert(NULL != src);
#endif
if ((NULL != rp) && (NULL != src)) {
if (L'-' == *src) { $? ". negative"
if (0 != dk4ma_input_wc_hex_dk4_um_t(&res, ++src, &ep, atg, erp)) {
if (((dk4_um_t)(DK4_IM_MAX) + (dk4_um_t)1UL) == res) { $? ". ok min"
*rp = DK4_IM_MIN;
back = 1;
} else {
if (((dk4_um_t)(DK4_IM_MAX)) >= res) { $? ". ok neg"
*rp = (dk4_im_t)0L - (dk4_im_t)res;
back = 1;
} else { $? "! overflow"
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
}
} else { $? "! failed"
}
} else { $? ". not negative"
if (0 != dk4ma_input_wc_hex_dk4_um_t(&res, src, &ep, atg, erp)) {
*rp = (dk4_im_t)res;
back = 1;
} else { $? "! failed"
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
if (NULL != endptr) { *endptr = ep; }
$? "- dk4ma_input_wc_hex_dk4_im_t %d", back
return back;
}
|
