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Author SHA1 Message Date
Ævar Arnfjörð Bjarmason
952fba9c63 Fix a bitwise negation assignment issue spotted by Sun Studio
Change direct and indirect assignments of the bitwise negation of 0 to
uint32_t variables to have a "U" suffix. I.e. ~0U instead of ~0. This
eliminates warnings under Sun Studio 12 Update 1:

    "vcs-svn/string_pool.c", line 11: warning: initializer will be sign-extended: -1 (E_INIT_SIGN_EXTEND)
    "vcs-svn/string_pool.c", line 81: warning: initializer will be sign-extended: -1 (E_INIT_SIGN_EXTEND)
    "vcs-svn/repo_tree.c", line 112: warning: initializer will be sign-extended: -1 (E_INIT_SIGN_EXTEND)
    "vcs-svn/repo_tree.c", line 112: warning: initializer will be sign-extended: -1 (E_INIT_SIGN_EXTEND)
    "test-treap.c", line 34: warning: initializer will be sign-extended: -1 (E_INIT_SIGN_EXTEND)

The semantics are still the same as demonstrated by this program:

    $ cat test.c && make test && ./test
    #include <stdio.h>
    #include <stdint.h>

    int main(void)
    {
        uint32_t foo = ~0;
        uint32_t bar = ~0U;

        printf("foo = <%u> bar = <%u>\n", foo, bar);

        return 0;
    }
    cc     test.c   -o test
    "test.c", line 5: warning: initializer will be sign-extended: -1
    foo = <4294967295> bar = <4294967295>

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-21 10:19:40 -08:00
Jonathan Nieder
06316234ac vcs-svn: remove spurious semicolons
trp_gen is not a statement or function call, so it should not be
followed with a semicolon.  Noticed by gcc -pedantic.

 vcs-svn/repo_tree.c:41:81: warning: ISO C does not allow extra ';'
  outside of a function [-pedantic]

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-16 12:56:23 -07:00
David Barr
1d73b52f5b Add string-specific memory pool
Intern strings so they can be compared by address and stored without
wasting space.

This library uses the macros in the obj_pool.h and trp.h to create a
memory pool for strings and expose an API for handling them.

[rr: added API docs]
[jn: with some API simplifications, new documentation and tests]

Signed-off-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-14 19:35:37 -07:00