I use Doxygen version 1.9.3.
I have a c file :
#define l 20;
#define n 30;
#define k 40;
static void func1(int a, int b)
{
printf("a %d",a);
}
int func2(int x )
{
return x;
}
long func3(char c)
{
long temp = 0;
return temp;
}
The file has 3 #define, after running Doxygen my output looks like this:
Is there a way to remove the Macro Definition Documentation section? I just want the Macro section.
doxygen -x Doxyfile output:
Related
I'am using nest macro, sub macro use base macro variable, for simplification example:
#define SUB a += 1;
#define BASE(a) SUB printf("a: %d\n", a);
int main(){
int c = 1;
BASE(c)
return 0;
}
but compile error:
a was not declared in this scope ... #define SUB a += 1
why can't variable a be used in SUB macro?
but the below works:
#define SUB(a) a += 1;
#define BASE(a) SUB(a) printf("a: %d\n", a);
I have two variable bit-shifting code fragments that I want to SSE-vectorize by some means:
1) a = 1 << b (where b = 0..7 exactly), i.e. 0/1/2/3/4/5/6/7 -> 1/2/4/8/16/32/64/128/256
2) a = 1 << (8 * b) (where b = 0..7 exactly), i.e. 0/1/2/3/4/5/6/7 -> 1/0x100/0x10000/etc
OK, I know that AMD's XOP VPSHLQ would do this, as would AVX2's VPSHLQ. But my challenge here is whether this can be achieved on 'normal' (i.e. up to SSE4.2) SSE.
So, is there some funky SSE-family opcode sequence that will achieve the effect of either of these code fragments? These only need yield the listed output values for the specific input values (0-7).
Update: here's my attempt at 1), based on Peter Cordes' suggestion of using the floating point exponent to do simple variable bitshifting:
#include <stdint.h>
typedef union
{
int32_t i;
float f;
} uSpec;
void do_pow2(uint64_t *in_array, uint64_t *out_array, int num_loops)
{
uSpec u;
for (int i=0; i<num_loops; i++)
{
int32_t x = *(int32_t *)&in_array[i];
u.i = (127 + x) << 23;
int32_t r = (int32_t) u.f;
out_array[i] = r;
}
}
In order to create a MEX function and use it in my MATLAB code, like this:
[pow,index] = mx_minimum_power(A11,A12,A13,A22,A23,A33);
I've created the file mx_minimum_power.cpp and written the following code in it:
#include <math.h>
#include <complex>
#include "mex.h"
#include "matrix.h"
#include "cvm.h"
#include "blas.h"
#include "cfun.h"
using std::complex;
using namespace cvm;
/* The gateway function */
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
const int arraysize = 62172;
const int matrixDimention = 3;
float *inMatrixA11 = (float *)mxGetPr(prhs[0]);
complex<float> *inMatrixA12 = (complex<float> *)mxGetPr(prhs[1]);
complex<float> *inMatrixA13 = (complex<float> *)mxGetPr(prhs[2]);
float *inMatrixA22 = (float *)mxGetPr(prhs[3]);
complex<float> *inMatrixA23 = (complex<float> *)mxGetPr(prhs[4]);
float *inMatrixA33 = (float *)mxGetPr(prhs[5]);
basic_schmatrix< float, complex<float> > A(matrixDimention);
int i = 0;
for (i = 0; i < arraysize; i++)
{
A.set(1, 1, inMatrixA11[i]);
A.set(1, 2, inMatrixA12[i]);
A.set(1, 3, inMatrixA13[i]);
A.set(2, 2, inMatrixA22[i]);
A.set(2, 3, inMatrixA23[i]);
A.set(3, 3, inMatrixA33[i]);
}
}
And then in order to be able to debug the code, I've created the mx_minimum_power.pdb and mx_minimum_power.mexw64 files, using the following code in the Matlab Command Window:
mex -g mx_minimum_power.cpp cvm_em64t_debug.lib
The files blas.h, cfun.h, cvm.h and cvm_em64t_debug.lib are in the same directory as mx_minimum_power.cpp.
They are the headers and library files of the CVM Class Library.
Then I've attached MATLAB.exe to Visual Studio 2013, using the way explained here.
and have set a breakpoint at line40:
When I run my MATLAB code, there's no error until the specified line.
But if I click on the Step Over button, I'll encounter the following message:
With the following information added to the Output:
First-chance exception at 0x000007FEFCAE9E5D in MATLAB.exe: Microsoft C++ exception: cvm::cvmexception at memory location 0x0000000004022570.
> throw_segv_longjmp_seh_filter()
throw_segv_longjmp_seh_filter(): C++ exception
< throw_segv_longjmp_seh_filter() = EXCEPTION_CONTINUE_SEARCH
Can you suggest me why libmex.pdb is needed at that line and how should I solve the issue?
If I stop debugging, I'll get the following information in MATLAB Command Window:
Unexpected Standard exception from MEX file.
What() is:First index value 0 is out of [1,4) range
Right before pressing the step over button, we have the following values for A11[0],A12[0],A13[0],A22[0],A23[0],A33[0]:
that are just right as my expectations, according to what MATLAB passes to the MEX function:
Maybe the problem is because of wrong allocation for matrix A, it is as follows just before pressing the step over button.
The problem occurs because we have the following code in lines 48 to 53 of the cvm.h file:
// 5.7 0-based indexing
#if defined (CVM_ZERO_BASED)
# define CVM0 TINT_ZERO //!< Index base, 1 by default or 0 when \c CVM_ZERO_BASED is defined
#else
# define CVM0 TINT_ONE //!< Index base, 1 by default or 0 when \c CVM_ZERO_BASED is defined
#endif
That makes CVM0 = 1 by default. So if we press the Step Into(F11) button at the specified line two times, we will get into line 34883 of the file cvm.h:
basic_schmatrix& set(tint nRow, tint nCol, TC c) throw(cvmexception)
{
this->_set_at(nRow - CVM0, nCol - CVM0, c);
return *this;
}
Press Step Into(F11) at line this->_set_at(nRow - CVM0, nCol - CVM0, c); and you'll go to the definition of the function _set_at:
// sets both elements to keep matrix hermitian, checks ranges
// zero based
void _set_at(tint nRow, tint nCol, TC val) throw(cvmexception)
{
_check_lt_ge(CVM_OUTOFRANGE_LTGE1, nRow, CVM0, this->msize() + CVM0);
_check_lt_ge(CVM_OUTOFRANGE_LTGE2, nCol, CVM0, this->nsize() + CVM0);
if (nRow == nCol && _abs(val.imag()) > basic_cvmMachMin<TR>()) { // only reals on main diagonal
throw cvmexception(CVM_BREAKS_HERMITIANITY, "real number");
}
this->get()[this->ld() * nCol + nRow] = val;
if (nRow != nCol) {
this->get()[this->ld() * nRow + nCol] = _conjugate(val);
}
}
pressing Step Over(F10) button,you'll get the result:
so in order to get nRow=1 and nCol=1 and not nRow=0 and nCol=0, which is out of the range [1,4), you should write that line of code as:
A.set(2, 2, inMatrixA11[i]);
I want to write the following matlab code in Eigen (where K is pxp and W is pxb):
H = (K*W)>0;
However the only thing that I came up so far is:
H = ((K*W.array() > 0).select(1,0));
This code doesn't work as explained here, but replacing 0 with VectorXd::Constant(p,0) (as suggested in the link question) generates a runtime error:
Eigen::internal::variable_if_dynamic<T, Value>::variable_if_dynamic(T) [with T = long int; int Value = 1]: Assertion `v == T(Value)' failed.
How can I solve this?
You don't need .select(). You just need to cast an array of bool to an array of H's component type.
H = ((K * W).array() > 0.0).cast<double>();
Your original attempt failed because the size of your constant 1/0 array is not match with the size of H. Using VectorXd::Constant is not a good choice when H is MatrixXd. You also have a problem with parentheses. I think you want * rather than .* in matlab notation.
#include <iostream>
#include <Eigen/Eigen>
using namespace Eigen;
int main() {
const int p = 5;
const int b = 10;
MatrixXd H(p, b), K(p, p), W(p, b);
K.setRandom();
W.setRandom();
H = ((K * W).array() > 0.0).cast<double>();
std::cout << H << std::endl << std::endl;
H = ((K * W).array() > 0).select(MatrixXd::Constant(p, b, 1),
MatrixXd::Constant(p, b, 0));
std::cout << H << std::endl;
return 0;
}
When calling a template member function in a template, you need to use the template keyword.
#include <iostream>
#include <Eigen/Eigen>
using namespace Eigen;
template<typename Mat, typename Vec>
void createHashTable(const Mat &K, Eigen::MatrixXi &H, Mat &W, int b) {
Mat CK = K;
H = ((CK * W).array() > 0.0).template cast<int>();
}
int main() {
const int p = 5;
const int b = 10;
Eigen::MatrixXi H(p, b);
Eigen::MatrixXf W(p, b), K(p, p);
K.setRandom();
W.setRandom();
createHashTable<Eigen::MatrixXf, Eigen::VectorXf>(K, H, W, b);
std::cout << H << std::endl;
return 0;
}
See this for some explanation.
Issue casting C++ Eigen::Matrix types via templates
I'm using Intel Advisor XE, part of Parallel Studio XE 2013 with Ubuntu 2014. Program for Prime number is as:
#include "stdio.h"
#include "stdlib.h"
int isPrime(long unsigned int x)
{
long unsigned int i;
for (i = 2; i < x; i += 1)
{
if(x%i==0)
return 0;
}
if(i==x)
return i;
}
int main (int argc, char *argv[])
{
double tic=omp_get_wtime();
long unsigned int i,num;
num=999999;
for (i = 1; i <= num; i += 1)
{
if(isPrime(i)) printf("\t%lu",i);
}
return 0;
}
I run this program with both icc and gcc and tested it on Intel Parallel Studio XE Advisor XE 2013. It went well with resulting hotspots and resultant tree like . Now when I added Annotation code something like
#include "stdio.h"
#include "stdlib.h"
#include "/opt/intel/advisor_xe_2013/include/advisor-annotate.h"
int isPrime(long unsigned int x)
{
long unsigned int i;
for (i = 2; i < x; i += 1)
{
if(x%i==0)
return 0;
}
if(i==x)
return i;
}
int main (int argc, char *argv[])
{
long unsigned int i,num;
num=999999;
ANNOTATE_SITE_BEGIN( MySite1 ); //Loop control statement to begin a parallel code region (parallel site).
for (i = 1; i <= num; i += 1)
{
ANNOTATE_ITERATION_TASK( MyTask1 ); // This annotation identifies an entire body as a task.
if(isPrime(i)) printf("\t%lu",i);
}
ANNOTATE_SITE_END(); // End the parallel code region, after task execution completes
return 0;
}
It gave me error like "Can not load row collector data."
I'm uploading images for the result. which seems like no errors but at last it shows like
Note 1 /proc/sys/kernel/yama/ptrace_scope has been updated to 0.
Note 2 I have set up LibPath LD_LIBRARY_PATH:/opt/intel/advisor_xe_2013/include
PS I tried for fibonacci of 6 digit number, and got the same result saying NO DATA
The problem was with compilation, I played around various options and tried using -I option with GCC and ICC to include library path, which I mentioned for header file, i.e. /opt/intel/advisor_xe_2013/include/ and also linked libraries using -ldl option which solved problem.