zzy
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将 `is_next_line` 内联函数重命名为 `lex_parse_is_endline` 并新增 `lex_parse_is_whitespace` 函数，统一用于词法解析中的字符分类。同时加强多个解析函数的输入参数断言，提升代码健壮性。 此外，修正了 `lex_parse_skip_whitespace` 中的逻辑错误，并优化部分注释和控制流结构。 feat(pprocessor): 初始化预处理器模块并添加基础功能实现 新增预处理器模块 `pprocessor`，包括宏定义、条件编译状态管理以及基本的指令解析框架。实现了标识符解析、空白跳过、关键字查找等功能，并初步支持 `#define` 指令的对象类宏替换。 该提交还引入了一组测试用例，覆盖多种宏展开场景及边界情况，确保预处理器的核心行为符合预期。
97 lines
2.8 KiB
Plaintext
97 lines
2.8 KiB
Plaintext
Tiny C Compiler - C Scripting Everywhere - The Smallest ANSI C compiler
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-----------------------------------------------------------------------
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Features:
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--------
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- SMALL! You can compile and execute C code everywhere, for example on
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rescue disks.
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- FAST! tcc generates optimized x86 code. No byte code
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overhead. Compile, assemble and link about 7 times faster than 'gcc
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-O0'.
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- UNLIMITED! Any C dynamic library can be used directly. TCC is
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heading toward full ISOC99 compliance. TCC can of course compile
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itself.
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- SAFE! tcc includes an optional memory and bound checker. Bound
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checked code can be mixed freely with standard code.
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- Compile and execute C source directly. No linking or assembly
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necessary. Full C preprocessor included.
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- C script supported : just add '#!/usr/local/bin/tcc -run' at the first
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line of your C source, and execute it directly from the command
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line.
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Documentation:
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-------------
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1) Installation on a i386/x86_64/arm/aarch64/riscv64
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Linux/macOS/FreeBSD/NetBSD/OpenBSD hosts.
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./configure
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make
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make test
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make install
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Notes: For FreeBSD, NetBSD and OpenBSD, gmake should be used instead of make.
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For Windows read tcc-win32.txt.
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makeinfo must be installed to compile the doc. By default, tcc is
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installed in /usr/local/bin. ./configure --help shows configuration
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options.
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2) Introduction
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We assume here that you know ANSI C. Look at the example ex1.c to know
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what the programs look like.
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The include file <tcclib.h> can be used if you want a small basic libc
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include support (especially useful for floppy disks). Of course, you
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can also use standard headers, although they are slower to compile.
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You can begin your C script with '#!/usr/local/bin/tcc -run' on the first
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line and set its execute bits (chmod a+x your_script). Then, you can
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launch the C code as a shell or perl script :-) The command line
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arguments are put in 'argc' and 'argv' of the main functions, as in
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ANSI C.
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3) Examples
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ex1.c: simplest example (hello world). Can also be launched directly
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as a script: './ex1.c'.
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ex2.c: more complicated example: find a number with the four
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operations given a list of numbers (benchmark).
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ex3.c: compute fibonacci numbers (benchmark).
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ex4.c: more complicated: X11 program. Very complicated test in fact
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because standard headers are being used ! As for ex1.c, can also be launched
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directly as a script: './ex4.c'.
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ex5.c: 'hello world' with standard glibc headers.
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tcc.c: TCC can of course compile itself. Used to check the code
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generator.
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tcctest.c: auto test for TCC which tests many subtle possible bugs. Used
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when doing 'make test'.
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4) Full Documentation
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Please read tcc-doc.html to have all the features of TCC.
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Additional information is available for the Windows port in tcc-win32.txt.
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License:
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-------
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TCC is distributed under the GNU Lesser General Public License (see
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COPYING file).
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Fabrice Bellard.
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