98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
/*
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* Academic License - for use in teaching, academic research, and meeting
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* course requirements at degree granting institutions only. Not for
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* government, commercial, or other organizational use.
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* File: rtGetNaN.c
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*
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* MATLAB Coder version : 24.1
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* C/C++ source code generated on : 2025-04-09 02:18:34
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*/
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/*
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* Abstract:
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* MATLAB for code generation function to initialize non-finite, NaN
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*/
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/* Include Files */
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#include "rtGetNaN.h"
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#include "rt_nonfinite.h"
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/*
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* Function: rtGetNaN
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* ======================================================================
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* Abstract:
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* Initialize rtNaN needed by the generated code.
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* NaN is initialized as non-signaling. Assumes IEEE.
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*/
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real_T rtGetNaN(void)
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{
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real_T nan = 0.0;
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uint16_T one = 1U;
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enum
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{
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LittleEndian,
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BigEndian
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} machByteOrder = (*((uint8_T *)&one) == 1U) ? LittleEndian : BigEndian;
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switch (machByteOrder) {
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case LittleEndian: {
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union {
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LittleEndianIEEEDouble bitVal;
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real_T fltVal;
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} tmpVal;
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tmpVal.bitVal.words.wordH = 0xFFF80000U;
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tmpVal.bitVal.words.wordL = 0x00000000U;
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nan = tmpVal.fltVal;
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break;
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}
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case BigEndian: {
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union {
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BigEndianIEEEDouble bitVal;
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real_T fltVal;
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} tmpVal;
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tmpVal.bitVal.words.wordH = 0x7FFFFFFFU;
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tmpVal.bitVal.words.wordL = 0xFFFFFFFFU;
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nan = tmpVal.fltVal;
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break;
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}
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}
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return nan;
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}
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/*
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* Function: rtGetNaNF
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* =====================================================================
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* Abstract:
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* Initialize rtNaNF needed by the generated code.
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* NaN is initialized as non-signaling. Assumes IEEE
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*/
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real32_T rtGetNaNF(void)
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{
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IEEESingle nanF = {{0}};
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uint16_T one = 1U;
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enum
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{
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LittleEndian,
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BigEndian
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} machByteOrder = (*((uint8_T *)&one) == 1U) ? LittleEndian : BigEndian;
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switch (machByteOrder) {
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case LittleEndian: {
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nanF.wordL.wordLuint = 0xFFC00000U;
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break;
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}
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case BigEndian: {
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nanF.wordL.wordLuint = 0x7FFFFFFFU;
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break;
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}
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}
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return nanF.wordL.wordLreal;
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}
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/*
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* File trailer for rtGetNaN.c
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*
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* [EOF]
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*/
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