QLocale: modernize ascii_isspace() to C++17

And on 64-bit platforms, use a 64-bit integer, which removes a
subtraction from the matching code.

The loop in bytearrayToLongLong() looks like, on x86-64:

        movabsq $4294983168, %rsi
.L1217:
        movzbl  (%rdx), %ecx
        cmpl    $64, %ecx
        ja      .L1216
        btq     %rcx, %rsi
        jnc     .L1216
        incq    %rdx
        cmpq    %rbx, %rdx
        jne     .L1217

Change-Id: I3d74c753055744deb8acfffd1723d8b51e151432
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

0 files changed, 0 insertions, 0 deletions