Re: [PATCH 2/5] safe_create_leading_directories(): reduce scope of local variable

[Michael Haggerty]

On 12/26/2013 10:55 PM, Jonathan Nieder wrote:
> Michael Haggerty wrote:
> 
>> Signed-off-by: Michael Haggerty 
>> ---
>>  sha1_file.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/sha1_file.c b/sha1_file.c
>> index c9245a6..cc9957e 100644
>> --- a/sha1_file.c
>> +++ b/sha1_file.c
>> @@ -108,9 +108,10 @@ int mkdir_in_gitdir(const char *path)
>>  int safe_create_leading_directories(char *path)
>>  {
>>  char *pos = path + offset_1st_component(path);
>> -struct stat st;
>>  
>>  while (pos) {
>> +struct stat st;
> 
> Is this to make it easier to reason about whether 'st' has been
> properly initialized at any given moment, or is there a more subtle
> reason?

No, just the boring reason, the one that makes me reduce the scope of
variables whenever possible.  I'll buff up the log message.

Michael

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Michael Haggerty
mhag...@alum.mit.edu
http://softwareswirl.blogspot.com/
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Re: [PATCH 2/5] safe_create_leading_directories(): reduce scope of local variable

[Jonathan Nieder]

Michael Haggerty wrote:

> Signed-off-by: Michael Haggerty 
> ---
>  sha1_file.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/sha1_file.c b/sha1_file.c
> index c9245a6..cc9957e 100644
> --- a/sha1_file.c
> +++ b/sha1_file.c
> @@ -108,9 +108,10 @@ int mkdir_in_gitdir(const char *path)
>  int safe_create_leading_directories(char *path)
>  {
>   char *pos = path + offset_1st_component(path);
> - struct stat st;
>  
>   while (pos) {
> + struct stat st;

Is this to make it easier to reason about whether 'st' has been
properly initialized at any given moment, or is there a more subtle
reason?

Curious,
Jonathan
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[PATCH 2/5] safe_create_leading_directories(): reduce scope of local variable

[Michael Haggerty]

Signed-off-by: Michael Haggerty 
---
 sha1_file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sha1_file.c b/sha1_file.c
index c9245a6..cc9957e 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -108,9 +108,10 @@ int mkdir_in_gitdir(const char *path)
 int safe_create_leading_directories(char *path)
 {
char *pos = path + offset_1st_component(path);
-   struct stat st;
 
while (pos) {
+   struct stat st;
+
pos = strchr(pos, '/');
if (!pos)
break;
-- 
1.8.5.1

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