Friday, January 7, 2011

Pantheios::Extras::DiagUtil 0.1.1 (alpha 1)

I've just released the first publicly available version - 0.1.1 (alpha 1) - of Pantheios.Extras.DiagUtil; details here.


It allows a user to replace code such as:

 #if defined(_MSC_VER) && \
     defined(_DEBUG)
 # include <crtdbg.h>
 #endif

 int main(int argc, char** argv)
 {
 #if defined(_MSC_VER) && \
     defined(_DEBUG)
  _CrtMemState  memState;

  _CrtMemCheckpoint(&memState);
 #endif

  int result;

  . . .  // main program logic (which must assign to result)

 #if defined(_MSC_VER) && \
     defined(_DEBUG)

  _CrtMemDumpAllObjectsSince(&memState);
 #endif

  return result;
 }

with:

 #include <pantheios/extras/diagutil.hpp>

 int program(int argc, char** argv)
 {
  . . . // main program logic

  return EXIT_SUCCESS;
 }

 int main(int argc, char** argv)
 {
  return pantheios::extras::diagutil::
           main_leak_trace::invoke(argc, argv, program);
 }

or, if your program is written in C, with:

 #include <pantheios/extras/diagutil.h>

 int program(int argc, char** argv)
 {
  . . . // main program logic

  return EXIT_SUCCESS;
 }

 int main(int argc, char** argv)
 {
  return pantheios_extras_diagutil_main_leak_trace_invoke(
           argc, argv, program);
  }

The immediate advantate is clear: substantially improved transparency in your application code. There are three secondary advantages:
  • you do not need to explicitly conditionally include crtdbg.h
  • the library can be enhanced in the future to work with other compiler-extensions, without requiring any changes to your code
  • you do not have to avoid the use of return statements in your main program logic, and to remember to assign to result

More memory-tracing functionality will appear in forthcoming releases.

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