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matthias fdc18d307a mutiples fix for _Generic
* check that _Generic don't match unsigned char * with char *
  this case is usefull as with -funsigned-char, 'char *' are unsigned

* change VT_LONG so it's now a qualifier

  VT_LONG are never use for code generation, but only durring parsing state,
  in _Generic we need to be able to make diference between
  'long' and 'long long'
  So VT_LONG is now use as a type qualifier, it's old behaviour is still
  here, but we can keep trace of what was a long and what wasn't

* add TOK_CLONG and TOK_CULONG

  tcc was directly converting value like '7171L' into TOK_CLLONG or
  TOK_CINT depending of the machine architecture.

  because of that, we was unable to make diference between a long and a
  long long, which doesn't work with _Generic.

  So now 7171L is a TOK_CLONG, and we can handle _Generic properly

* check that _Generic can make diference between long and long long

* uncomment "type match twice" as it should now pass tests on any platforms

* add inside_generic global

  the point of this variable is to use VT_LONG in comparaison only
  when we are evaluating a _Generic.
  problem is with my lastest patchs tcc can now make the diference between
  a 'long long' and a 'long', but in 64 bit stddef.h typedef uint64_t as
  typedef signed long long int int64_t and stdint.h as unsigned long int, so tcc
  break when stdint.h and stddef.h are include together.

  Another solution woud be to modifie include/stddef.h so it define uint64_t as
  unsigned long int when processor is 64 bit, but this could break some
  legacy code, so for now, VT_LONG are use only inside generc.

* check that _Generic parse first argument correctly

* check that _Generic evaluate correctly exresion like "f() / 2"
2017-07-21 19:30:31 +02:00
examples makefile: unify cross with native builds 2017-02-25 12:51:04 +01:00
include Add support of musl-libc 2017-04-20 22:01:50 +02:00
lib unsorted adjustments 2017-07-09 12:07:40 +02:00
tests mutiples fix for _Generic 2017-07-21 19:30:31 +02:00
win32 Add -O2 when compiling tcc on Windows. Not sure this flag is really used by tcc. 2017-06-10 06:35:11 +02:00
.gitignore cross-compilers: allow individual configuration 2017-02-23 08:41:57 +01:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
Changelog Add note about native Windows bootstrap using Cygwin. 2017-02-23 06:45:26 +01:00
CodingStyle CodingStyle: Remove reference to misaligned struct CString. 2016-01-06 19:09:28 +00:00
Makefile #pragma comment(option,"-..."), bitfields test, etc... 2017-07-14 19:26:01 +02:00
README tcc: re-enable correct option -r support 2017-02-20 18:58:08 +01:00
RELICENSING Add note about native Windows bootstrap using Cygwin. 2017-02-23 06:45:26 +01:00
TODO Remove a bit-field TODO 2017-04-29 22:09:10 +02:00
VERSION update VERSION to 0.9.27 2017-02-08 19:56:15 +01:00
arm-asm.c configure: --config-musl/-uClibc switch & misc cleanups 2017-05-13 08:59:06 +02:00
arm-gen.c refactor sym & attributes 2017-07-09 12:34:11 +02:00
arm-link.c configure: --config-musl/-uClibc switch & misc cleanups 2017-05-13 08:59:06 +02:00
arm64-gen.c refactor enums 2017-07-09 12:38:25 +02:00
arm64-link.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
c67-gen.c refactor sym & attributes 2017-07-09 12:34:11 +02:00
c67-link.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
coff.h Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
configure unsorted adjustments 2017-07-09 12:07:40 +02:00
conftest.c tcctools.c: integrate tiny_libmaker/_impdef 2017-02-18 09:55:34 +01:00
elf.h Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
i386-asm.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
i386-asm.h x86-asm: Fix lar opcode operands 2016-12-15 17:47:08 +01:00
i386-gen.c refactor sym & attributes 2017-07-09 12:34:11 +02:00
i386-link.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
i386-tok.h x86-64-asm: Support high registers %r8 - %r15 2016-12-15 17:47:09 +01:00
il-gen.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
il-opcodes.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
libtcc.c tcc -dt -run ... : simpler is better 2017-07-20 22:21:27 +02:00
libtcc.h tcctools.c: integrate tiny_libmaker/_impdef 2017-02-18 09:55:34 +01:00
stab.def Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
stab.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tcc-doc.texi tcc: re-enable correct option -r support 2017-02-20 18:58:08 +01:00
tcc.c tcc -dt -run ... : simpler is better 2017-07-20 22:21:27 +02:00
tcc.h mutiples fix for _Generic 2017-07-21 19:30:31 +02:00
tccasm.c tcc -dt -run ... : simpler is better 2017-07-20 22:21:27 +02:00
tcccoff.c Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccelf.c When creating a staticaly linked ELF program should not include 2017-06-09 19:44:29 +01:00
tccgen.c mutiples fix for _Generic 2017-07-21 19:30:31 +02:00
tcclib.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccpe.c refactor sym & attributes 2017-07-09 12:34:11 +02:00
tccpp.c mutiples fix for _Generic 2017-07-21 19:30:31 +02:00
tccrun.c tcc -dt -run ... : simpler is better 2017-07-20 22:21:27 +02:00
tcctok.h #pragma comment(option,"-..."), bitfields test, etc... 2017-07-14 19:26:01 +02:00
tcctools.c tcc -dt -run ... : simpler is better 2017-07-20 22:21:27 +02:00
texi2pod.pl Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
x86_64-asm.h x86-64-asm: Fix mov im64,rax encoding 2017-02-23 00:16:25 +01:00
x86_64-gen.c refactor enums 2017-07-09 12:38:25 +02:00
x86_64-link.c the R_X86_64_GOTOFF64 relocation was missing 2017-05-16 07:03:26 +02:00

README

Tiny C Compiler - C Scripting Everywhere - The Smallest ANSI C compiler
-----------------------------------------------------------------------

Features:
--------

- SMALL! You can compile and execute C code everywhere, for example on
  rescue disks.

- FAST! tcc generates optimized x86 code. No byte code
  overhead. Compile, assemble and link about 7 times faster than 'gcc
  -O0'.

- UNLIMITED! Any C dynamic library can be used directly. TCC is
  heading torward full ISOC99 compliance. TCC can of course compile
  itself.

- SAFE! tcc includes an optional memory and bound checker. Bound
  checked code can be mixed freely with standard code.

- Compile and execute C source directly. No linking or assembly
  necessary. Full C preprocessor included. 

- C script supported : just add '#!/usr/local/bin/tcc -run' at the first
  line of your C source, and execute it directly from the command
  line.

Documentation:
-------------

1) Installation on a i386/x86_64/arm Linux/OSX/FreeBSD host

   ./configure
   make
   make test
   make install

   Notes: For OSX and FreeBSD, gmake should be used instead of make.
   For Windows read tcc-win32.txt.

makeinfo must be installed to compile the doc.  By default, tcc is
installed in /usr/local/bin.  ./configure --help  shows configuration
options.


2) Introduction

We assume here that you know ANSI C. Look at the example ex1.c to know
what the programs look like.

The include file <tcclib.h> can be used if you want a small basic libc
include support (especially useful for floppy disks). Of course, you
can also use standard headers, although they are slower to compile.

You can begin your C script with '#!/usr/local/bin/tcc -run' on the first
line and set its execute bits (chmod a+x your_script). Then, you can
launch the C code as a shell or perl script :-) The command line
arguments are put in 'argc' and 'argv' of the main functions, as in
ANSI C.

3) Examples

ex1.c: simplest example (hello world). Can also be launched directly
as a script: './ex1.c'.

ex2.c: more complicated example: find a number with the four
operations given a list of numbers (benchmark).

ex3.c: compute fibonacci numbers (benchmark).

ex4.c: more complicated: X11 program. Very complicated test in fact
because standard headers are being used ! As for ex1.c, can also be launched
directly as a script: './ex4.c'.

ex5.c: 'hello world' with standard glibc headers.

tcc.c: TCC can of course compile itself. Used to check the code
generator.

tcctest.c: auto test for TCC which tests many subtle possible bugs. Used
when doing 'make test'.

4) Full Documentation

Please read tcc-doc.html to have all the features of TCC.

Additional information is available for the Windows port in tcc-win32.txt.

License:
-------

TCC is distributed under the GNU Lesser General Public License (see
COPYING file).

Fabrice Bellard.