[gcc r14-6959] libstdc++: Remove unneeded double operation in src/c++17/fs_path.cc

[gcc r14-6959] libstdc++: Remove unneeded double operation in src/c++17/fs_path.cc

[Jonathan Wakely]

https://gcc.gnu.org/g:a3fee5ef891cc8e4f39fe118ab5a3e875fcc7088

commit r14-6959-ga3fee5ef891cc8e4f39fe118ab5a3e875fcc7088
Author: Martin Küttler <martin.kuettler@kernkonzept.com>
Date:   Fri Jan 5 12:45:20 2024 +0000

    libstdc++: Remove unneeded double operation in src/c++17/fs_path.cc
    
    libstdc++-v3/ChangeLog:
    
            * src/c++17/fs_path.cc (path::_List::reserve): Avoid
            floating-point arithmetic.

Diff:
---
 libstdc++-v3/src/c++17/fs_path.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/src/c++17/fs_path.cc b/libstdc++-v3/src/c++17/fs_path.cc
index 4e41b891c2c..a2d3c54a88a 100644
--- a/libstdc++-v3/src/c++17/fs_path.cc
+++ b/libstdc++-v3/src/c++17/fs_path.cc
@@ -447,8 +447,9 @@ path::_List::reserve(int newcap, bool exact = false)
 
   if (curcap < newcap)
     {
-      if (!exact && newcap < int(1.5 * curcap))
-	newcap = 1.5 * curcap;
+      const int nextcap = curcap + curcap / 2;
+      if (!exact && newcap < nextcap)
+	newcap = nextcap;
 
       void* p = ::operator new(sizeof(_Impl) + newcap * sizeof(value_type));
       std::unique_ptr<_Impl, _Impl_deleter> newptr(::new(p) _Impl{newcap});