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Is sizeof(bool) defined in the C++ language standard?

...ndard puts notable emphasis on this fact. §5.3.3/1, abridged: sizeof(char), sizeof(signed char) and sizeof(unsigned char) are 1; the result of sizeof applied to any other fundamental type is implementation-defined. [Note: in particular, sizeof(bool) and sizeof(wchar_t) are implementation-defin...
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How can I parse a CSV string with JavaScript, which contains comma in data?

I have the following type of string 17 Answers 17 ...
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Sending message through WhatsApp

...ntent(Intent.ACTION_SEND); waIntent.setType("text/plain"); String text = "YOUR TEXT HERE"; PackageInfo info=pm.getPackageInfo("com.whatsapp", PackageManager.GET_META_DATA); //Check if package exists or not. If not then code //in catch block will be called ...
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Dump a NumPy array into a csv file

...d works well for numerical data, but it throws an error for numpy.array of strings. Could you prescribe a method to save as csv for an numpy.array object containing strings? – Ébe Isaac Mar 25 '16 at 14:31 ...
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SQL SERVER: Get total days between two dates

... It also proceeds datetime and datetime2 like a charm as I can see in my results. – Honza P. Feb 28 at 8:40 add a comment  |  ...
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c语言字符串常量内容是否可以通过指针修改 - C/C++ - 清泛网 - 专注C/C++及内核技术

...是:不行。尝试修改的话,运行时程序会崩溃。int main(){ char str1[40]="hello world!"; char *str1="hello world!"...答案是:不行。尝试修改的话,运行时程序会崩溃。 int main() { char str1[40]="hello world!"; //char *str1="hello world!"; str1[4]...
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AfxIsValidAddress 测试内存地址 - C/C++ - 清泛网 - 专注C/C++及内核技术

...不仅限于模块分配新的地址。 Example // Allocate a 5 character array, which should have a valid memory address. char* arr = new char[5]; // Create a null pointer, which should be an invalid memory address. char* null = (char*)0x0; ASSERT(AfxIsValidAddress(arr, 5)); ASSER...
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c/c++如何判断指针无效?如NULL,0xcccccccc,0xfeeefeee,野指针等 - C/C++ -...

...何判断指针是否有效呢? AfxIsValidAddress // Allocate a 5 character array, which should have a valid memory address. char* arr = new char[5]; // Create a null pointer, which should be an invalid memory address. char* null = (char*)0x0; ASSERT(AfxIsValidAddress(arr, 5)); ASSE...
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C/C++获取Windows的CPU、内存、硬盘使用率 - C/C++ - 清泛网 - 专注C/C++及内核技术

...icalDriveStrings()函数获取所有驱动器字符串信息长度。 char* DStr = new char[DSLength];//用获取的长度在堆区创建一个c风格的字符串数组 GetLogicalDriveStrings(DSLength, (LPTSTR)DStr); //通过GetLogicalDriveStrings将字符串信息复制到堆区数...
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【解决】munmap_chunk(): invalid pointer - C/C++ - 清泛网 - 专注C/C++及内核技术

...指针被覆盖掉了,然后delete free就会报这个错误。例如:char* word = (char*)malloc(10);word = "abc"; 应使用 strcpy(word, "abc");free(word) 原因:new/malloc出来的指针被覆盖掉了,然后delete/free就会报这个错误。 例如: char* word = (char*)malloc(1...