c - why nginx don't use basic types directly? -


the code ngx_config.h

typedef intptr_t        ngx_int_t; typedef uintptr_t       ngx_uint_t; typedef intptr_t        ngx_flag_t;

the prototype of intptr_t int, , corresponding uintptr_t u_int.

seems sophisticated type hierarchy set nginx designer. confused why don't use basic type directly?

in fact kind of type hierarchy makes code bit sophisticated.

i know hierarchy can make easy when try modify type b change 1 line of code can lead better portability, change typedef xxtype typedef b xxtype, wonder if kind of type hierarchy on used in nginx? here clues on use staff?

what's more, can tell more benefits or tricks kind of design:)


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