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The expression ((Integer) 42). toString will convert an integer literal to string in Java while 42. ToString () performs the same operation in C#. This is because the latter one is an instance call on the primitive value 42 , while the former one is an instance call on an object of type java.lang.Integer .
In addition to the assumption about bit-representation of floating-point numbers, the above floating-point type-punning example also violates the C language's constraints on how objects are accessed: [3] the declared type of x is float but it is read through an expression of type unsigned int.
The integer is: 16777217 The float is: 16777216.000000 Their equality: 1 Note that 1 represents equality in the last line above. This odd behavior is caused by an implicit conversion of i_value to float when it is compared with f_value. The conversion causes loss of precision, which makes the values equal before the comparison. Important takeaways:
Convert to an unsigned int32 (on the stack as int32) and throw an exception on overflow. Base instruction 0x88 conv.ovf.u4.un: Convert unsigned to an unsigned int32 (on the stack as int32) and throw an exception on overflow. Base instruction 0xBA conv.ovf.u8: Convert to an unsigned int64 (on the stack as int64) and throw an exception on overflow.
Runtime exception handling method in C# is inherited from Java and C++. ... Int32: integer ... unsigned integer 0 through 255 8-bit (1-byte) 0:
The actual sizes of short int, int, and long int are available as the constants short max int, max int, and long max int etc. ^b Commonly used for characters. ^c The ALGOL 68, C and C++ languages do not specify the exact width of the integer types short , int , long , and ( C99 , C++11 ) long long , so they are implementation-dependent.
Almost all programming languages supply one or more integer data types. They may either supply a small number of predefined subtypes restricted to certain ranges (such as short and long and their corresponding unsigned variants in C/C++); or allow users to freely define subranges such as 1..12 (e.g. Pascal/Ada). If a corresponding native type ...
A constant unsigned integer variable can be declared as: const unsigned int x ; where const is a type qualifier, which the qualified type of x is const unsigned int and the unqualified type is unsigned int .