fix those particular gcc analyzer warning (#582)

devnexen · web-flow · commit f032e3feb0f6 · 2023-01-03T11:22:17.000Z
diff --git a/src/snmalloc/ds_core/helpers.h b/src/snmalloc/ds_core/helpers.h
@@ -322,7 +322,7 @@ namespace snmalloc
         append_char('-');
         s = 0 - s;
       }
-      std::array<char, 20> buf;
+      std::array<char, 20> buf{{0}};
       const char digits[] = "0123456789";
       for (long i = long(buf.size() - 1); i >= 0; i--)
       {
@@ -352,7 +352,7 @@ namespace snmalloc
     {
       append_char('0');
       append_char('x');
-      std::array<char, 16> buf;
+      std::array<char, 16> buf{{0}};
       const char hexdigits[] = "0123456789abcdef";
       // Length of string including null terminator
       static_assert(sizeof(hexdigits) == 0x11);

Original file line number	Diff line number	Diff line change
`@@ -322,7 +322,7 @@ namespace snmalloc`
`322`	`322`	`append_char('-');`
`323`	`323`	`s = 0 - s;`
`324`	`324`	`}`
`325`		`- std::array<char, 20> buf;`
	`325`	`+ std::array<char, 20> buf{{0}};`
`326`	`326`	`const char digits[] = "0123456789";`
`327`	`327`	`for (long i = long(buf.size() - 1); i >= 0; i--)`
`328`	`328`	`{`
`@@ -352,7 +352,7 @@ namespace snmalloc`
`352`	`352`	`{`
`353`	`353`	`append_char('0');`
`354`	`354`	`append_char('x');`
`355`		`- std::array<char, 16> buf;`
	`355`	`+ std::array<char, 16> buf{{0}};`
`356`	`356`	`const char hexdigits[] = "0123456789abcdef";`
`357`	`357`	`// Length of string including null terminator`
`358`	`358`	`static_assert(sizeof(hexdigits) == 0x11);`