Linux Programming

int iCPU = system ("omp_get_num_procs");

int main() {
#ifdef STEP
	cout << "Project VNAR-19270 VNA-1023 (6 base) Vector network analyzer" << endl; 
	cout << "DEBUG ****RUNNING WORKING COPY of VNA_2 " << endl; 
	//exit(1);
#endif



	// Get the number of processors in this system
	int iCPU = 0;
	iCPU = system ("omp_get_num_procs");
	cout << "# of CPU's " << dec << +iCPU << endl;
	exit(1);

Richard MacCutchan wrote:

The error message implies the the omp_get_num_procs program cannot be found in any of the standard locations

int iCPU = 0;
	iCPU = omp_get_num_procs();
	//iCPU = system ("omp_get_num_procs");
	cout << "# of CPU's " << dec << +iCPU << endl;
	exit(1);

./src/VNA_1022_BASE.o: In function `main':
/media/jim/DEV/Eclipse_2019_03_M1/workspace/eclipse-workspace/VNAR_19280/Debug/../src/VNA_1022_BASE.cpp:253: undefined reference to `omp_get_num_procs'
makefile:80: recipe for target 'VNAR_19280' failed
collect2: error: ld returned 1 exit status
make: *** [VNAR_19280] Error 1
"make all" terminated with exit code 2. Build might be incomplete.

#include <cstdio>

FILE *cmd = popen("ls -l -x /dev/spi*", "r");

while(!feof(cmd) && !ferr(cmd)) {
    fscanf(cmd, ...);
    // do stuff
}
fclose(cmd);

#include <glob>

glob_t spi_files;

glob("/dev/spi*", 0, 0, &spi_files);
for(size_t i = 0; i < spi_files.gl_pathc; ++i) {
    char *filename = gl.pathv[i];
    ...
}
globfree(&spi_files);

Vaclav_ wrote:

I just downloaded boost , like to try it, but it does not included format.