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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/dktools/dk4maiwhdi.ctr
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+%% options
+
+copyright owner = Dirk Krause
+copyright year = 2015-xxxx
+license = bsd
+
+
+
+%% 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
+#include "dk4conf.h"
+#endif
+
+#ifndef DK4TYPES_H_INCLUDED
+#include "dk4types.h"
+#endif
+
+#ifndef DK4ERROR_H_INCLUDED
+#include "dk4error.h"
+#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 "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 ((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;
+}
+