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authorJakob Kaivo <jkk@ung.org>2020-08-15 16:11:00 -0400
committerJakob Kaivo <jkk@ung.org>2020-08-15 16:11:00 -0400
commit90e6d78377dcb8e7e244bfb0ac3f18509be8396c (patch)
treea0fbbb394df958dedc9e2ff706b37b04b2444738
parentd87e102d2e40e1ab09872c0612add856ad173852 (diff)
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-Building
---------
-First run configure to set up the standards conformance. It has help when run
-with -h, which will always be more up-to-date than anything that could be put
-in this document.
-
-Then run make.
-
-Code Organization
------------------
-Every identifier is placed in its own .c file. Every single one. Every function
-(with two types of exceptions), every extern variable, every #define, every
-typedef, every struct and union definition. This facilitates generating man
-pages, 1 per, as well has header generation.
-
-The two exceptions are math functions (in <math.h>, <complex.h>, and
-<tgmath.h>) that are defined identically for all three floating point types,
-and Curses functions (in <curses.h>) that include w and possible mv and mvw
-prefixed versions. Those use macros inside those files to define the alternate
-versions, and the man page and header file generation scripts treat them
-specially.
-
-As for paths, files are in src/<primary header name without.h>/<identifier>.c.
-For example, printf() is at src/stdio/printf.c.
-
-Compiler Requirements
----------------------
-The compiler must define exactly one of __LP32__, __ILP32__, __ILP64__,
-__LLP64__, or __LP64__, describing the relative sizes of int, long, long long,
-and pointer types as described in this table (underscores remove for clarity):
-
- LP32 ILP32 ILP64 LLP64 LP64
-char 8 8 8 8 8
-short 16 16 16 16 16
-int 16 32 64 32 32
-long 32 32 64 32 64
-long long 64 64 64 64 64
-pointer 32 32 64 64 64
-
-The aformentioned symbol is used, among other places, for the proper definition
-of size_t, ssize_t, and intptr_t.
-
-Coding Style
-------------
-Start with K&R. Indents are tabs. Tabs are 8 spaces.