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c++ Programming Glossary: va_listHow to pass variable number of arguments to printf/sprintf http://stackoverflow.com/questions/1056411/how-to-pass-variable-number-of-arguments-to-printf-sprintf Bad void Error const char format ... char dest 1024 16 va_list argptr va_start argptr format vsprintf dest format argptr va_end.. vprintf or vfprintf Good void Error const char format ... va_list argptr va_start argptr format vfprintf stderr format argptr..
Writing Python bindings for C++ code that use OpenCV http://stackoverflow.com/questions/12957492/writing-python-bindings-for-c-code-that-use-opencv 0 static int failmsg const char fmt ... char str 1000 va_list ap va_start ap fmt vsnprintf str sizeof str fmt ap va_end ap.. static PyObject failmsgp const char fmt ... char str 1000 va_list ap va_start ap fmt vsnprintf str sizeof str fmt ap va_end ap..
Understanding the difference between f() and f(void) in C and C++ once and for all [duplicate] http://stackoverflow.com/questions/13319492/understanding-the-difference-between-f-and-fvoid-in-c-and-c-once-and-for-a Note that it is NOT the same as ellipsis we can't use va_list . Now here is where things get interesting. Case 1 Declaration..
Variable number of arguments in C++? http://stackoverflow.com/questions/1657883/variable-number-of-arguments-in-c in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start.. and va_end . #include stdarg.h int maxof int n_args ... va_list ap va_start ap n_args int max va_arg ap int for int i 2 i n_args..
Are there gotchas using varargs with reference parameters http://stackoverflow.com/questions/222195/are-there-gotchas-using-varargs-with-reference-parameters summarized ... AnsiString working AnsiString format ... va_list argptr AnsiString buff va_start argptr format buff.vprintf format.c_str.. happening va_start argptr format becomes roughly argptr va_list format 1 If format is a value type it gets placed on the stack.. working_ptr const AnsiString format ... ASSERT format NULL va_list argptr AnsiString buff va_start argptr format buff.vprintf format..
C/C++ function definitions without assembly http://stackoverflow.com/questions/2442966/c-c-function-definitions-without-assembly called __printf int __printf const char format ... va_list arg int done va_start arg format done vfprintf stdout format..
std::string.resize() and std::string.length() http://stackoverflow.com/questions/2880248/stdstring-resize-and-stdstring-length std string formatStdString const string &format ... va_list va string output size_t needed size_t used va_start va format..
Passing variable arguments to another function that accepts a variable argument list http://stackoverflow.com/questions/3530771/passing-variable-arguments-to-another-function-that-accepts-a-variable-argument do it directly you have to create a function that takes a va_list #include stdarg.h static void exampleV int b va_list args void.. a va_list #include stdarg.h static void exampleV int b va_list args void example int a int b ... va_list args va_start args.. exampleV int b va_list args void example int a int b ... va_list args va_start args b exampleV b args va_end args void exampleB..
How to wrap a function with variable length arguments? http://stackoverflow.com/questions/41400/how-to-wrap-a-function-with-variable-length-arguments You sample works as follows void myprintf char fmt ... va_list args va_start args fmt vprintf fmt args va_end args int _tmain..
How can I use the TRACE macro in non-MFC projects? http://stackoverflow.com/questions/494653/how-can-i-use-the-trace-macro-in-non-mfc-projects _DEBUG bool _trace TCHAR format ... TCHAR buffer 1000 va_list argptr va_start argptr format wvsprintf buffer format argptr..
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