long-long
Why do C compilers specify long to be 32-bit and long long to be 64-bit?
Wouldn\'t it have made more sense to make long 64-bit and reserve long long until 开发者_StackOverflow 128-bit numbers become a reality?Yes, it does make sense, but Microsoft had their own reasons for[详细]
2023-04-01 06:06 分类：问答Pointer conversion to long porting issue in 64 bit env
I\'m porting an application from 32 bit to 64 bit. It is C style coding (legacy product) although it is C++. I have an issue where a combination of union and struct are used to store values. Here a cu[详细]
2023-03-13 06:51 分类：问答grabbing upper 4 bytes of a 8 byte word
I am multiplying 0x1d400 * 0xE070381D. When I do this on my calculator the result is 0x00019A4D26950400[详细]
2023-03-04 20:03 分类：问答Casting to long long (GCC)
long long x; double n; x=long long(n); This doesn\'t work. What is the corre开发者_开发技巧ct way?The obvious:[详细]
2023-03-01 05:46 分类：问答long long vs int multiplication
Given the following snippet: #include <stdio.h> typedef signed long long int64; typedef signed int int32;[详细]
2023-01-12 07:01 分类：问答What kind of data type is "long long"?
I don\'t know this type. Is that the biggest one from all? I think it is an integer type, right? Or is it a floating point thing? Bigger 开发者_C百科than double?According to C99 standard, long long is[详细]
2022-12-17 04:25 分类：问答
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