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159 Commits

Author SHA1 Message Date
Rui Ueyama e27417fcde Add __DATE__ and __TIME__ macros 2020-12-07 12:00:06 +09:00
Rui Ueyama c3075b3030 Add anonymous struct and union 2020-12-07 12:00:06 +09:00
Rui Ueyama 9c36dd727c Make "main" to implicitly return 0 2020-12-07 12:00:06 +09:00
Rui Ueyama 5257ee0f20 Make an array of at least 16 bytes long to have alignment of at least 16 bytes 
Quote from AMD64 System V ABI: "An array uses the same alignment as
its elements, except that a local or global array variable of length
at least 16 bytes or a C99 variable-length array variable always has
alignment of at least 16 bytes."
 2020-12-07 12:00:06 +09:00
Rui Ueyama b1fdddff15 Ignore -O, -W and -g and other flags 2020-12-07 12:00:06 +09:00
Rui Ueyama 17ea802cea Handle zero-width bitfield member 2020-12-07 12:00:06 +09:00
Rui Ueyama 54c2b3b18f Handle op=-style assignments to bitfields 2020-12-07 12:00:06 +09:00
Rui Ueyama 441a89b80b Support global struct bitfield initializer 2020-12-07 12:00:06 +09:00
Rui Ueyama cc852fe99d Add bitfield 2020-12-07 12:00:06 +09:00
Rui Ueyama be8b6f6d31 Add -U option 2020-12-07 12:00:06 +09:00
Rui Ueyama fc69f5c6f9 Add -D option 2020-12-07 12:00:06 +09:00
Rui Ueyama 3f2c2d5bca Tokenize numeric tokens as pp-numbers 2020-12-07 12:00:06 +09:00
Rui Ueyama e0b5da3b39 Dereferencing a function shouldn't do anything 
This is an oddity in the C spec, but you can apply the unary `*`
operator to a function as many times as you want. `*x` and `x`
means exactly the same, given that `x` is a function.
 2020-12-07 12:00:06 +09:00
Rui Ueyama 603de502fd Add va_copy() 2020-12-07 12:00:06 +09:00
Rui Ueyama b6d3cd00df Allow variadic function to take more than 6 parameters 2020-12-07 12:00:06 +09:00
Rui Ueyama d7bad96114 Allow to define a function returning a struct 2020-12-07 12:00:06 +09:00
Rui Ueyama c72df1c9be Allow to call a fucntion returning a struct 2020-12-07 12:00:06 +09:00
Rui Ueyama d63b1f410a Allow struct argument 2020-12-07 12:00:06 +09:00
Rui Ueyama 5e0f8c47e3 Allow struct parameter 2020-12-07 12:00:06 +09:00
Rui Ueyama 9021f7f5de Support passed-on-stack parameters 2020-12-07 12:00:06 +09:00
Rui Ueyama b29f052102 Support passed-on-stack arguments 2020-12-07 12:00:06 +09:00
Rui Ueyama 5322ea8495 Add va_arg() 2020-12-07 12:00:06 +09:00
Rui Ueyama 7cbfd111d3 Add stdarg.h, stdbool.h, stddef.h, stdalign.h and float.h 2020-12-07 12:00:06 +09:00
Rui Ueyama 7746e4ee0b Recognize wide character literal 
For now, L'' is equivalent to ''.
 2020-12-07 12:00:06 +09:00
Rui Ueyama ab4f1e1e19 Concatenate adjacent string literals 2020-12-07 12:00:06 +09:00
Rui Ueyama 82ba010c76 [GNU] Add __FUNCTION__ 2020-12-07 12:00:06 +09:00
Rui Ueyama ba6b4b6375 Add __func__ 2020-12-07 12:00:06 +09:00
Rui Ueyama dc01f94900 Add __VA_ARGS__ 2020-12-07 12:00:06 +09:00
Rui Ueyama 6f17071885 Add __FILE__ and __LINE__ 2020-12-07 12:00:06 +09:00
Rui Ueyama 5f5a8507ff Add predefine macros such as __STDC__ 2020-12-07 12:00:06 +09:00
Rui Ueyama a1dd6213c8 Add -I<dir> option 2020-12-07 12:00:06 +09:00
Rui Ueyama d85fc4ffcf Add #include <...> 2020-12-07 12:00:06 +09:00
Rui Ueyama b33fe0ea82 Support line continuation 2020-12-07 12:00:06 +09:00
Rui Ueyama 8075582c21 Preserve newline and space during macro expansion 2020-12-07 12:00:06 +09:00
Rui Ueyama a8d76ad435 Replace remaining identifiers with 0 in macro constexpr 2020-12-07 12:00:06 +09:00
Rui Ueyama 5cb2f89e6a Add defined() macro operator 2020-12-07 12:00:06 +09:00
Rui Ueyama 769b5a0941 Use chibicc's preprocessor for all tests 2020-12-07 12:00:06 +09:00
Rui Ueyama 8f561aed9b Add macro token-pasting operator (##) 2020-12-07 12:00:06 +09:00
Rui Ueyama 8f6f7925a0 Add macro stringizing operator (#) 2020-12-07 12:00:06 +09:00
Rui Ueyama 1313fc6d3a Do not expand a token more than once for the same funclike macro 2020-12-07 12:00:06 +09:00
Rui Ueyama c7d7ce0f0c Allow parenthesized expressions as macro arguments 2020-12-07 12:00:06 +09:00
Rui Ueyama dd4306cdd8 Allow empty macro arguments 2020-12-07 12:00:06 +09:00
Rui Ueyama b9ad3e43cf Add multi-arity funclike #define 2020-12-07 12:00:06 +09:00
Rui Ueyama dec3b3fa02 Add zero-arity funclike #define 2020-12-07 12:00:06 +09:00
Rui Ueyama 1f80f581e5 Add #ifdef and #ifndef 2020-12-07 12:00:06 +09:00
Rui Ueyama acce00228b Do not expand a token more than once for the same objlike macro 2020-12-07 12:00:06 +09:00
Rui Ueyama 2651448084 Expand macros in the #if and #elif argument context 2020-12-07 12:00:06 +09:00
Rui Ueyama 9ad60e41d5 Add #undef 2020-12-07 12:00:06 +09:00
Rui Ueyama 97d33ad3bd Add objlike #define 2020-12-07 12:00:06 +09:00
Rui Ueyama e7a1857a31 Add #elif 2020-12-07 12:00:06 +09:00