(This is a GNU extension.) */#ifdef__USE_GNU#defineassert_perror(errnum) (__ASSERT_VOID_CAST (0))#endif#else/* Not NDEBUG. */#ifndef_ASSERT_H_DECLS#define_ASSERT_H_DECLS__BEGIN_DECLS/* This prints an "Assertion failed" message and aborts. */externvoid__assert_fail (constchar*__...
assert.h cassert _Ccsid.h cctype ceeedcct.h cerrno cfloat cics.h ciso646 climits clocale cmath collate.h complex.h cpio.h csetjmp csignal csp.h cstdarg cstddef cstdio cstdlib cstring ctest.h ctime ctype.h cwchar cwctype decimal.h dirent.h ...
#define assert(cond, ...) \ if (!(cond)) \ _assert(#cond, __FILE__, __LINE__, #__VA_ARGS__ __VA_OPT__(,) ##__VA_ARGS__) void _assert (const char* snippet, const char* file, int line, const char* message, ...) { print("assert failed %s:%d %s\n", file, line...
第二次我们在#include <cassert>之前增加定义#define NDEBUG,再进行编译执行,得到如下结果: num:333 Segmentation fault (core dumped) # 出现段错误,使用gdb进行调试 gdb ./test # 结果如下: (gdb) r Starting program: /home/sangyu/WorkSpace/Code/C++/CPPStudy/CHeaderFile/...
5.错误处理:C语言并没有内置的异常处理机制,所以建议使用返回值来表示函数是否执行成功,以及使用全局变量或者指针参数来返回错误信息。使用assert宏来捕获不应该发生的情况也是一个好的编程习惯。 在C语言中,我们通常使用返回值来表示错误。以下是一个简单的错误处理的例子: ...
afxwin1.inl ASSERT error in AfxGetResourceHandle() already defined in .obj Alternative for strptime() AlwaysCreate -> unsuccessfulbuild ambiguous symbol An error occurred while creating or opening the C++ browsing database file... Any idea about invalidoperationexception: no process is associated wit...
SELselector =@selector(message);//@selector不是函数调用,只是给这个坑爹的编译器的一个提示 NSLog(@"%s", (char*)selector);//print message 注:这里之所以说粗鲁,是因为,这个的定义和object runtime 的具体实现息息相关,未来很可能改变,而这些定义也是没有文档化的,后面还会详细介绍SEL的具体实现。因为这...
c assert 用法 #include <stdio.h>/*printf*/#include<assert.h>/*assert*/voidprint_number(int*myInt) { assert (myInt!=NULL); printf ("%d\n",*myInt); }intmain () {inta=10;int* b =NULL;int* c =NULL; b=&a; print_number (b);...
#define mu_assert(message, test) do { if (!(test)) return message; } while (0) #define mu_run_test(test) do { char *message = test(); tests_run++; \ if (message) return message; } while (0) extern int tests_run; 说明...
box with "All" radio button// initially selected. All other radio buttons are disabled.CPrintDialogdlg(FALSE);if(dlg.DoModal() == IDOK) {// Create a printer device context (DC) based on the information// selected from the Print dialog.HDC hdc = dlg.CreatePrinterDC(); ASSERT(hdc); }...