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Add NO_C99_FORMAT to support older compilers.

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The NO_C99_FORMAT macro allows compilers that lack support for the
ll,hh,j,z,t size specifiers (eg. gcc 2.95.2) to adapt the code to avoid
runtime errors in the formatted IO functions.

Signed-off-by: Ramsay Allan Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Ramsay Allan Jones 2006-07-30 16:38:28 +01:00 committed by Junio C Hamano
parent 446c6faec6
commit 579d1fbfaf
3 changed files with 35 additions and 6 deletions
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8
Makefile
View File

@ -24,6 +24,11 @@ all:
# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
#
# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
# do not support the 'size specifiers' introduced by C99, namely ll, hh,
# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
# some c compilers supported these specifiers prior to C99 as an extension.
#
# Define NO_STRCASESTR if you don't have strcasestr.
#
# Define NO_STRLCPY if you don't have strlcpy.
@ -432,6 +437,9 @@ endif
ifdef NO_D_INO_IN_DIRENT
ALL_CFLAGS += -DNO_D_INO_IN_DIRENT
endif
ifdef NO_C99_FORMAT
ALL_CFLAGS += -DNO_C99_FORMAT
endif
ifdef NO_SYMLINK_HEAD
ALL_CFLAGS += -DNO_SYMLINK_HEAD
endif

15
alloc.c
View File

@ -39,8 +39,21 @@ DEFINE_ALLOCATOR(tree)
DEFINE_ALLOCATOR(commit)
DEFINE_ALLOCATOR(tag)
#ifdef NO_C99_FORMAT
#define SZ_FMT "%u"
#else
#define SZ_FMT "%zu"
#endif
static void report(const char* name, unsigned int count, size_t size)
{
fprintf(stderr, "%10s: %8u (" SZ_FMT " kB)\n", name, count, size);
}
#undef SZ_FMT
#define REPORT(name) \
fprintf(stderr, "%10s: %8u (%zu kB)\n", #name, name##_allocs, name##_allocs*sizeof(struct name) >> 10)
report(#name, name##_allocs, name##_allocs*sizeof(struct name) >> 10)
void alloc_report(void)
{

18
mktag.c
View File

@ -39,6 +39,12 @@ static int verify_object(unsigned char *sha1, const char *expected_type)
return ret;
}
#ifdef NO_C99_FORMAT
#define PD_FMT "%d"
#else
#define PD_FMT "%td"
#endif
static int verify_tag(char *buffer, unsigned long size)
{
int typelen;
@ -67,15 +73,15 @@ static int verify_tag(char *buffer, unsigned long size)
/* Verify tag-line */
tag_line = strchr(type_line, '\n');
if (!tag_line)
return error("char%td: could not find next \"\\n\"", type_line - buffer);
return error("char" PD_FMT ": could not find next \"\\n\"", type_line - buffer);
tag_line++;
if (memcmp(tag_line, "tag ", 4) || tag_line[4] == '\n')
return error("char%td: no \"tag \" found", tag_line - buffer);
return error("char" PD_FMT ": no \"tag \" found", tag_line - buffer);
/* Get the actual type */
typelen = tag_line - type_line - strlen("type \n");
if (typelen >= sizeof(type))
return error("char%td: type too long", type_line+5 - buffer);
return error("char" PD_FMT ": type too long", type_line+5 - buffer);
memcpy(type, type_line+5, typelen);
type[typelen] = 0;
@ -92,14 +98,14 @@ static int verify_tag(char *buffer, unsigned long size)
break;
if (c > ' ')
continue;
return error("char%td: could not verify tag name", tag_line - buffer);
return error("char" PD_FMT ": could not verify tag name", tag_line - buffer);
}
/* Verify the tagger line */
tagger_line = tag_line;
if (memcmp(tagger_line, "tagger", 6) || (tagger_line[6] == '\n'))
return error("char%td: could not find \"tagger\"", tagger_line - buffer);
return error("char" PD_FMT ": could not find \"tagger\"", tagger_line - buffer);
/* TODO: check for committer info + blank line? */
/* Also, the minimum length is probably + "tagger .", or 63+8=71 */
@ -108,6 +114,8 @@ static int verify_tag(char *buffer, unsigned long size)
return 0;
}
#undef PD_FMT
int main(int argc, char **argv)
{
unsigned long size = 4096;