ssPrintf for C-Mex S-Function
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I would like to debug my S-Function using ssPrintf, but if the ssPrintf is between #ifndef MATLAB_MEX_FILE and #endif, there is no message printing out. Even I use mexPrintf or printf.
static void mdlOutputs(SimStruct *S, int_T tid)
{
ssPrintf("message1\n");
#ifndef MATLAB_MEX_FILE
ssPrintf("message2\n");
#endif
ssPrintf("message3\n");
}
-------------------------
Output in Command Windows:
message1
message3
-------------------------
Thanks!!!
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回答 (1 件)
Kaustubha Govind
2012 年 4 月 18 日
When the S-function is compiled as a MEX-function, the symbol MATLAB_MEX_FILE is always defined, so that line is effectively getting eliminated by the C pre-processor. MATLAB_MEX_FILE is undefined only when generating code using Simulink Coder (formerly Real-Time Workshop), as a non-inlined S-function - ie, there is not TLC file associated with that S-function.
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