From 589f7e0a57675efce9810c15a3e9b7c49bf0bc90 Mon Sep 17 00:00:00 2001
From: Dan Sinclair <dsinclair@chromium.org>
Date: Thu, 29 Oct 2015 14:56:26 -0400
Subject: Cleanup some numeric code.

This changes the various comparisons of char >= '0' && char <= '9' and
char < '0' || char > '9' to use std::isdigit checks. It also cleans up
a handful of hex to digit conversions to call one common method.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1415933005 .
---
 core/src/fxcodec/codec/fx_codec.cpp | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

(limited to 'core/src/fxcodec')

diff --git a/core/src/fxcodec/codec/fx_codec.cpp b/core/src/fxcodec/codec/fx_codec.cpp
index 46f479e0b1..eca6505d12 100644
--- a/core/src/fxcodec/codec/fx_codec.cpp
+++ b/core/src/fxcodec/codec/fx_codec.cpp
@@ -157,13 +157,13 @@ extern "C" double FXstrtod(const char* nptr, char** endptr) {
     return 0.0;
   }
   for (;; ptr++) {
-    if (!e_number && !e_point && (*ptr == '\t' || *ptr == ' ')) {
+    if (!e_number && !e_point && (*ptr == '\t' || *ptr == ' '))
       continue;
-    }
-    if (*ptr >= '0' && *ptr <= '9') {
-      if (!e_number) {
+
+    if (std::isdigit(*ptr)) {
+      if (!e_number)
         e_number = 1;
-      }
+
       if (!e_point) {
         ret *= 10;
         ret += (*ptr - '0');
@@ -188,29 +188,29 @@ extern "C" double FXstrtod(const char* nptr, char** endptr) {
       }
     }
     if (e_number && (*ptr == 'e' || *ptr == 'E')) {
-#define EXPONENT_DETECT(ptr)        \
-  for (;; ptr++) {                  \
-    if (*ptr < '0' || *ptr > '9') { \
-      if (endptr)                   \
-        *endptr = (char*)ptr;       \
-      break;                        \
-    } else {                        \
-      exp_ret *= 10;                \
-      exp_ret += (*ptr - '0');      \
-      continue;                     \
-    }                               \
+#define EXPONENT_DETECT(ptr)   \
+  for (;; ptr++) {             \
+    if (!std::isdigit(*ptr)) { \
+      if (endptr)              \
+        *endptr = (char*)ptr;  \
+      break;                   \
+    } else {                   \
+      exp_ret *= 10;           \
+      exp_ret += (*ptr - '0'); \
+      continue;                \
+    }                          \
   }
       exp_ptr = ptr++;
       if (*ptr == '+' || *ptr == '-') {
         exp_sig = (*ptr++ == '+') ? 1 : -1;
-        if (*ptr < '0' || *ptr > '9') {
+        if (!std::isdigit(*ptr)) {
           if (endptr) {
             *endptr = (char*)exp_ptr;
           }
           break;
         }
         EXPONENT_DETECT(ptr);
-      } else if (*ptr >= '0' && *ptr <= '9') {
+      } else if (std::isdigit(*ptr)) {
         EXPONENT_DETECT(ptr);
       } else {
         if (endptr) {
-- 
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