Nov 24, 2008 · If you are compiling in C99, you could #include <stdbool.h> and use bool, true, and false.bool would be a macro for _Bool, which itself is a standard type guaranteed to hold 0 or 1, and true and false are macros for 1 and 0 respectively.

Feb 21, 2011 · Unless it's some strange dialect of C and 'bool' data type is indeed some unique thing that doesn't behave like int. Last edited by nonoob; 02-21-2011 at 02:16 PM . 02-21-2011 #3

Bool is smaller and hence can be faster if you are keeping large arrays of bools/ints, in terms of cache efficiency. For your purpose, a bool is self-documenting, too. That said, since the x86 cdecl calling convention dictates that arguments smaller than 32-bit should be extended to 32-bit before getting pushed onto the stack (or does it not?).

bool - the built-in Boolean type. A bool can have the values true and false. So, if you have a scenario in which a boolean type makes sense, e.g., a flag or return value to denote yes/no or success/failure, you would consider using bool.

<< endl; } void MyClass::SetBool(bool val) { m_bValue = val; cout << "Setting m_bValue to: " << boolalpha << m_bValue << endl; } bool MyClass::m_bValue = false; int main() { // Set value of static bool to true, notice no instance of MyClass // exists at this point in time MyClass::SetBool(true); // Create instance of class, then destroy it ...

Forum; General Programming Boards; C++ Programming; Check all values in bool array so that they are true without using return, break?

thanks tap,that compiled fine and did change the value where was I going wrong? I had set up an if loop after the function to cout 'true'if was it true after the function was used and 'false'if it wasnt,and it always returned the var unchanged

Mar 1, 2003 · But this isn't a new type, to use the bool type, define him with typedef as people told you here. 03-01 ...

A narrowing conversion is an implicit conversion. from a floating-point type to an integer type, or; from long double to double or float, or from double to float, except where the source is a constant expression and the actual value after conversion is within the range of values that can be represented (even if it cannot be represented exactly), or

Jun 27, 2008 · An array of bool is simply: bool oneD[10]; or bool twoD[10][10]; That's fine if you know the exact size of arrays you need. If you need an array that can grow, you can use the boost::array as Elysia suggested.