2013年3月19日 · In practice it should be noted that char is usually 8 bits in size, short is usually 16 bits in size and long is usually 32 bits in size (likewise unsigned char, unsigned short and unsigned long). For example this holds true for platforms as diverse as 1990s Sun0S 4 Unix, Microsoft MSDOS, modern Linux, and Microchip MCC18 for embedded 8-bit PIC ...

2012年9月5日 · What's actually guaranteed is that the ranges of short int are at least -32767 .. +32767, and the range of short int is a subset of the range of int. It follows from this that short int and int are both at least 16 bits. Due to padding bits, it's theoretically possible to have sizeof (short int) > sizeof (int), but it's very unlikely. –

2012年4月21日 · The main reasons for using short is backward compatibility with C89 or older environments, which do not offer these types, or with libraries using short as part of their public API, for implementing <stdint.h> itself, or for compatibility with platforms that do not have 16-bit integers so their C compilers do not provide int16_t.

2012年7月30日 · The reference you read is correct. At least, for the usual C implementations where short is 16 bits - that's not actually fixed in the standard. 16 bits can hold 2^16 possible bit patterns, that's 65536 possibilities. Signed shorts are …

And there is no such thing as a short short int, that's just a char which is the smallest integer storage class in C. There might be some performance overhead when using this approach, but not because of implicit casts to ints, but rather because manipulating a bitmap is more tricky than directly manipulating array members.

2015年2月4日 · short is short for short int, they are equivalent in any C compiler. The same for long int vs long, ...

2016年7月11日 · This means that 65533 can't be represented correctly, the assignment overflows, it wraps to -3 (as short int is a signed short integer). But you already knew that. Secondly when sent as an argument to printf the short int is converted to int automatically, but as v contains -3 that's the value that is sent to printf.

2013年3月17日 · For unsigned (int and short), the range must be at least 0 to 65535, so that too must be at least 16 bits wide. Also, the standard mandates that the range of (unsigned) short is contained in the range of (unsigned) int, and the range of (unsigned) char must be contained in the range of (unsigned) short. It is perfectly legitimate that all these ...

2010年7月9日 · By the way you should probably never use the short type unless you have a really good reason. It's likely to be slow and has no benefits unless you're making a huge array of numbers that all fit in short, but then it would probably be …

C has the following syntax for a shorthand IF-ELSE statement (integer == 5) ? (TRUE) : (FALSE); I often find myself requiring only one portion (TRUE or FALSE) of the statement and use this (integer == 5) ? (TRUE) : (0); I was just wondering if there was a way to not include the ELSE portion of the statement using this shorthand notation?