revert src/test/utils.c

diff --git a/src/test/utils.c b/src/test/utils.c
new file mode 100644 (file)
index 0000000..a6370b0
--- /dev/null
+++ b/src/test/utils.c
@@ -0,0 +1,111 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <string.h>
+
+// Check if array == refArray
+void compareArray(const char* ID, const void* array, const void* refArray, int size,
+       int isinteger)
+{
+       float EPS = 1e-5; //precision
+       printf("Checking %s\n",ID);
+       float maxError = 0.0;
+       for (int i=0; i<size; i++)
+       {
+               float error = isinteger
+                       ? fabs(((int*)array)[i] - ((int*)refArray)[i])
+                       : fabs(((float*)array)[i] - ((float*)refArray)[i]);
+               if (error >= maxError)
+                       maxError = error;
+       }
+       if (maxError >= EPS)
+               printf("    Inaccuracy: max(abs(error)) = %g >= %g\n",maxError,EPS);
+       else
+               printf("    OK\n");
+}
+
+void compareArray_real(const char* ID, const void* array, const void* refArray, int size)
+{
+       return compareArray(ID, array, refArray, size, 0);
+}
+
+void compareArray_int(const char* ID, const void* array, const void* refArray, int size)
+{
+       return compareArray(ID, array, refArray, size, 1);
+}
+
+// Read array by columns (as in MATLAB) and return by-rows encoding
+void* readArray(const char* fileName, int isinteger)
+{
+       // need to prepend '../data/' (not really nice code...)
+       char* fullFileName = (char*)calloc(5+strlen(fileName)+1, sizeof(char));
+       strcat(fullFileName, "data/");
+       strcat(fullFileName, fileName);
+
+       // first pass to know how many elements to allocate
+       char* command = (char*)calloc(12+strlen(fullFileName)+8+1, sizeof(char));
+       strcat(command, "grep -o ' ' ");
+       strcat(command, fullFileName);
+       strcat(command, " | wc -l");
+       FILE *countSpaces = popen(command, "r");
+       char* buffer = (char*)calloc(32, sizeof(char));
+       fgets(buffer, sizeof(buffer), countSpaces);
+       int n = atoi(buffer) + 1;
+       free(buffer);
+       pclose(countSpaces);
+
+       // open file for reading
+       FILE* file = fopen(fullFileName, "r");
+       free(fullFileName);
+
+       int d = 1;
+       size_t elementSize = isinteger
+               ? sizeof(int)
+               : sizeof(float);
+
+       // read all values, and convert them to by-rows matrices format
+       void* array = malloc(n*elementSize);
+       char curChar = ' ';
+       char bufferNum[64];
+       for (int u=0; u<n; u++)
+       {
+               // read number (as a string)
+               int bufferIndex = 0;
+               while (!feof(file) && curChar!=' ')
+               {
+                       curChar = fgetc(file);
+                       bufferNum[bufferIndex++] = curChar;
+               }
+               bufferNum[bufferIndex] = 0;
+               // transform string into float, and store it at appropriate location
+               if (isinteger)
+                       ((int*)array)[u] = atoi(bufferNum);
+               else
+                       ((float*)array)[u] = atof(bufferNum);
+               // position to next non-separator character
+               curChar = fgetc(file);
+       }
+       fclose(file);
+
+       return array;
+}
+
+int* readArray_int(const char* fileName)
+{
+       return (int*)readArray(fileName, 1);
+}
+
+float* readArray_real(const char* fileName)
+{
+       return (float*)readArray(fileName, 0);
+}
+
+int read_int(const char* fileName)
+{
+       return readArray_int(fileName)[0];
+}
+
+float read_real(const char* fileName)
+{
+       return readArray_real(fileName)[0];
+}

diff --git a/src/test/utils.h b/src/test/utils.h
new file mode 100644 (file)
index 0000000..cbffc24
--- /dev/null
+++ b/src/test/utils.h
@@ -0,0 +1,17 @@
+// Check if array == refArray
+void compareArray(const char* ID, const void* array, const void* refArray, int size, int isInteger);
+
+void compareArray_real(const char* ID, const void* array, const void* refArray, int size);
+
+void compareArray_int(const char* ID, const void* array, const void* refArray, int size);
+
+// Read array by columns (as in MATLAB) and return by-rows encoding
+void* readArray(const char* fileName, int isInteger);
+
+int* readArray_int(const char* fileName);
+
+float* readArray_real(const char* fileName);
+
+int read_int(const char* fileName);
+
+float read_real(const char* fileName);