diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/dktools/dk4mai8hdu.ctr |
Initial commit
Diffstat (limited to 'support/dktools/dk4mai8hdu.ctr')
-rw-r--r-- | support/dktools/dk4mai8hdu.ctr | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/support/dktools/dk4mai8hdu.ctr b/support/dktools/dk4mai8hdu.ctr new file mode 100644 index 0000000000..186ef9f8e5 --- /dev/null +++ b/support/dktools/dk4mai8hdu.ctr @@ -0,0 +1,206 @@ +%% options + +copyright owner = Dirk Krause +copyright year = 2015-xxxx +license = bsd + + + +%% header + +/** @file + Retrieve dk4_um_t value from + 8 bit character 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_c8_hex_dk4_um_t( + dk4_um_t *rp, + const char *src, + const char **endptr, + int atg, + dk4_er_t *erp +); + +#ifdef __cplusplus +} +#endif + + + +%% module + +#include "dk4mai8hdu.h" +#include "dk4numco.h" +#include "dk4str8.h" + + + +$!trace-include + + + +int +dk4ma_input_c8_hex_dk4_um_t( + dk4_um_t *rp, + const char *src, + const char **endptr, + int atg, + dk4_er_t *erp +) +{ +#if VERSION_BEFORE_20141007 + dk4_er_t er; +#endif + dk4_um_t result= (dk4_um_t)0UL; + dk4_um_t op; + const char *ep = NULL; + int found = 0; + int back = 0; + int cc = 1; + $? "+ dk4ma_input_c8_hex_dk4_um_t \"%!8s\"", src + if ((NULL != rp) && (NULL != src)) { + if ('0' == src[0]) { + if (('x' == src[1]) || ('X' == src[1])) { src++; src++; } + } +#if VERSION_BEFORE_20141007 + dk4error_init(&er); +#endif + do { + $? ". src = \"%!8s\"", src + op = (dk4_um_t)0UL; + switch (*src) { + case '0': { op = (dk4_um_t)0UL; } break; + case '1': { op = (dk4_um_t)1UL; } break; + case '2': { op = (dk4_um_t)2UL; } break; + case '3': { op = (dk4_um_t)3UL; } break; + case '4': { op = (dk4_um_t)4UL; } break; + case '5': { op = (dk4_um_t)5UL; } break; + case '6': { op = (dk4_um_t)6UL; } break; + case '7': { op = (dk4_um_t)7UL; } break; + case '8': { op = (dk4_um_t)8UL; } break; + case '9': { op = (dk4_um_t)9UL; } break; + case 'a': case 'A': { op = (dk4_um_t)10UL; } break; + case 'b': case 'B': { op = (dk4_um_t)11UL; } break; + case 'c': case 'C': { op = (dk4_um_t)12UL; } break; + case 'd': case 'D': { op = (dk4_um_t)13UL; } break; + case 'e': case 'E': { op = (dk4_um_t)14UL; } break; + case 'f': case 'F': { op = (dk4_um_t)15UL; } break; + case '\0': { $? ". string finished" + cc = 0; + if (0 != found) { $? ". digits found" + back = 1; + *rp = result; + } else { $? ". no digits found" + ep = src; + dk4error_set_simple_error_code(erp, DK4_E_SYNTAX); + } + } break; + default: { + cc = 0; + ep = src; + if (0 != found) { + switch (atg) { + case 2: { + back = 1; + *rp = result; + } break; + case 1: { + if (NULL == dk4str8_start(src, NULL)) { + back = 1; + *rp = result; + } else { + dk4error_set_simple_error_code(erp, DK4_E_SYNTAX); + } + } break; + default: { + dk4error_set_simple_error_code(erp, DK4_E_SYNTAX); + } break; + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_SYNTAX); + } + } break; + } + if (0 != cc) { + found = 1; +#if VERSION_BEFORE_20141007 + result = dk4ma_um_add( + dk4ma_um_mul(result, (dk4_um_t)16UL, &er), + op, &er + ); + if (DK4_E_NONE != er.ec) { + cc = 0; + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + ep = src; + } +#else + if ((DK4_UM_MAX / (dk4_um_t)16UL) >= result) { + result *= (dk4_um_t)16UL; + if ((DK4_UM_MAX - op) >= result) { + result += op; + } else { + cc = 0; + ep = src; + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + cc = 0; + ep = src; + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } +#endif + } + if (0 != cc) { + src++; + } + } while (0 != cc); + } else { + dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); + if (NULL != src) { ep = src; } + } + if (NULL != endptr) { *endptr = ep; } + $? "- dk4ma_input_c8_hex_dk4_um_t %d", back + return back; +} + |