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-rw-r--r--Tests/Tutorial/Step5/MathFunctions/MakeTable.cxx25
-rw-r--r--Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx24
2 files changed, 21 insertions, 28 deletions
diff --git a/Tests/Tutorial/Step5/MathFunctions/MakeTable.cxx b/Tests/Tutorial/Step5/MathFunctions/MakeTable.cxx
index a23feeb620..cebd50fcc1 100644
--- a/Tests/Tutorial/Step5/MathFunctions/MakeTable.cxx
+++ b/Tests/Tutorial/Step5/MathFunctions/MakeTable.cxx
@@ -2,34 +2,31 @@
#include <math.h>
#include <stdio.h>
-int main (int argc, char *argv[])
+int main(int argc, char* argv[])
{
int i;
double result;
// make sure we have enough arguments
- if (argc < 2)
- {
+ if (argc < 2) {
return 1;
- }
+ }
// open the output file
- FILE *fout = fopen(argv[1],"w");
- if (!fout)
- {
+ FILE* fout = fopen(argv[1], "w");
+ if (!fout) {
return 1;
- }
+ }
// create a source file with a table of square roots
- fprintf(fout,"double sqrtTable[] = {\n");
- for (i = 0; i < 10; ++i)
- {
+ fprintf(fout, "double sqrtTable[] = {\n");
+ for (i = 0; i < 10; ++i) {
result = sqrt(static_cast<double>(i));
- fprintf(fout,"%g,\n",result);
- }
+ fprintf(fout, "%g,\n", result);
+ }
// close the table with a zero
- fprintf(fout,"0};\n");
+ fprintf(fout, "0};\n");
fclose(fout);
return 0;
}
diff --git a/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx b/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
index a488af6a3d..458ed63a15 100644
--- a/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
+++ b/Tests/Tutorial/Step5/MathFunctions/mysqrt.cxx
@@ -10,10 +10,9 @@
// a hack square root calculation using simple operations
double mysqrt(double x)
{
- if (x <= 0)
- {
+ if (x <= 0) {
return 0;
- }
+ }
double result;
@@ -22,23 +21,20 @@ double mysqrt(double x)
// use the table to help find an initial value
result = x;
- if (x >= 1 && x < 10)
- {
+ if (x >= 1 && x < 10) {
result = sqrtTable[static_cast<int>(x)];
- }
+ }
// do ten iterations
int i;
- for (i = 0; i < 10; ++i)
- {
- if (result <= 0)
- {
+ for (i = 0; i < 10; ++i) {
+ if (result <= 0) {
result = 0.1;
- }
- delta = x - (result*result);
- result = result + 0.5*delta/result;
- fprintf(stdout,"Computing sqrt of %g to be %g\n",x,result);
}
+ delta = x - (result * result);
+ result = result + 0.5 * delta / result;
+ fprintf(stdout, "Computing sqrt of %g to be %g\n", x, result);
+ }
return result;
}