From 7819ecbed662061eadd60c543dafe54cd32930ca Mon Sep 17 00:00:00 2001
From: Mark Mentovai <mark@chromium.org>
Date: Thu, 22 Jun 2017 16:46:26 -0400
Subject: [PATCH] posix: Use trunc() from <math.h> instead of std::trunc()

This folow-up to d2d10d1dc8f3 is for compatibility with 32-bit Android
platforms using NDK API 16.

isinf() is also caught up in the switch.

Change-Id: I652e27061c01afa3dd932f494cc4eeaca4236f40
Reviewed-on: https://chromium-review.googlesource.com/544238
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
---
 util/synchronization/semaphore_posix.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/util/synchronization/semaphore_posix.cc b/util/synchronization/semaphore_posix.cc
index 0dd8c26e..f6e8bea1 100644
--- a/util/synchronization/semaphore_posix.cc
+++ b/util/synchronization/semaphore_posix.cc
@@ -15,10 +15,9 @@
 #include "util/synchronization/semaphore.h"
 
 #include <errno.h>
+#include <math.h>
 #include <time.h>
 
-#include <cmath>
-
 #include "base/logging.h"
 #include "base/posix/eintr_wrapper.h"
 
@@ -54,7 +53,7 @@ void Semaphore::Wait() {
 bool Semaphore::TimedWait(double seconds) {
   DCHECK_GE(seconds, 0.0);
 
-  if (std::isinf(seconds)) {
+  if (isinf(seconds)) {
     Wait();
     return true;
   }
@@ -66,7 +65,7 @@ bool Semaphore::TimedWait(double seconds) {
   }
   timespec timeout;
   timeout.tv_sec = seconds;
-  timeout.tv_nsec = (seconds - std::trunc(seconds)) * 1E9;
+  timeout.tv_nsec = (seconds - trunc(seconds)) * 1E9;
   AddTimespec(current_time, timeout, &timeout);
 
   int rv = HANDLE_EINTR(sem_timedwait(&semaphore_, &timeout));