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authorDan Sinclair <dsinclair@chromium.org>2015-11-16 13:09:00 -0500
committerDan Sinclair <dsinclair@chromium.org>2015-11-16 13:09:00 -0500
commit10cfea1fdafc8fcf1edd60bc783e9db9ef6229c0 (patch)
tree3cd1bc8e6a6b33391ea8ad83388a07ca4974f40b /core/src/fxcrt/fx_basic_gcc.cpp
parentec441e67745054ece5e3d736b60fffa2f7f8d20c (diff)
downloadpdfium-10cfea1fdafc8fcf1edd60bc783e9db9ef6229c0.tar.xz
Merge to XFA: Reland "Cleanup some numeric code.""
This reverts commit 0569ab0b11b723d9bca4ddd642b0cf8828c4bdd1. 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=tsepez@chromium.org Review URL: https://codereview.chromium.org/1449873003 . (cherry picked from commit 3f148915d12f54a946a0c0bf526162b79c39d650) Review URL: https://codereview.chromium.org/1452673002 .
Diffstat (limited to 'core/src/fxcrt/fx_basic_gcc.cpp')
-rw-r--r--core/src/fxcrt/fx_basic_gcc.cpp48
1 files changed, 34 insertions, 14 deletions
diff --git a/core/src/fxcrt/fx_basic_gcc.cpp b/core/src/fxcrt/fx_basic_gcc.cpp
index f8b0c7ac78..c352ee3f81 100644
--- a/core/src/fxcrt/fx_basic_gcc.cpp
+++ b/core/src/fxcrt/fx_basic_gcc.cpp
@@ -5,29 +5,49 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include <limits>
+#include <cctype>
+#include <cwctype>
#include "core/include/fxcrt/fx_ext.h"
#include "core/include/fxcrt/fx_string.h"
-template <class T, class STR_T>
-T FXSYS_StrToInt(STR_T str) {
+template <class T>
+T FXSYS_StrToInt(const FX_CHAR* str) {
FX_BOOL neg = FALSE;
- if (str == NULL) {
+ if (!str)
return 0;
- }
+
if (*str == '-') {
neg = TRUE;
str++;
}
T num = 0;
- while (*str) {
- if ((*str) < '0' || (*str) > '9') {
+ while (*str && std::isdigit(*str)) {
+ if (num > (std::numeric_limits<T>::max() - 9) / 10)
break;
- }
- if (num > (std::numeric_limits<T>::max() - 9) / 10) {
+
+ num = num * 10 + FXSYS_toDecimalDigit(*str);
+ str++;
+ }
+ return neg ? -num : num;
+}
+
+template <class T>
+T FXSYS_StrToInt(const FX_WCHAR* str) {
+ FX_BOOL neg = FALSE;
+ if (!str)
+ return 0;
+
+ if (*str == '-') {
+ neg = TRUE;
+ str++;
+ }
+ T num = 0;
+ while (*str && std::iswdigit(*str)) {
+ if (num > (std::numeric_limits<T>::max() - 9) / 10)
break;
- }
- num = num * 10 + (*str) - '0';
+
+ num = num * 10 + FXSYS_toDecimalDigitWide(*str);
str++;
}
return neg ? -num : num;
@@ -71,16 +91,16 @@ STR_T FXSYS_IntToStr(T value, STR_T string, int radix) {
extern "C" {
#endif
int32_t FXSYS_atoi(const FX_CHAR* str) {
- return FXSYS_StrToInt<int32_t, const FX_CHAR*>(str);
+ return FXSYS_StrToInt<int32_t>(str);
}
int32_t FXSYS_wtoi(const FX_WCHAR* str) {
- return FXSYS_StrToInt<int32_t, const FX_WCHAR*>(str);
+ return FXSYS_StrToInt<int32_t>(str);
}
int64_t FXSYS_atoi64(const FX_CHAR* str) {
- return FXSYS_StrToInt<int64_t, const FX_CHAR*>(str);
+ return FXSYS_StrToInt<int64_t>(str);
}
int64_t FXSYS_wtoi64(const FX_WCHAR* str) {
- return FXSYS_StrToInt<int64_t, const FX_WCHAR*>(str);
+ return FXSYS_StrToInt<int64_t>(str);
}
const FX_CHAR* FXSYS_i64toa(int64_t value, FX_CHAR* str, int radix) {
return FXSYS_IntToStr<int64_t, uint64_t, FX_CHAR*>(value, str, radix);