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authorDan Sinclair <dsinclair@chromium.org>2015-10-29 14:56:26 -0400
committerDan Sinclair <dsinclair@chromium.org>2015-10-29 14:56:26 -0400
commit589f7e0a57675efce9810c15a3e9b7c49bf0bc90 (patch)
tree6839707c05c00f227744ffc3788665cb1cb5b7bd /core/src/fxcrt/fx_extension.cpp
parent6ed0028f1cf12ee53e9e7f657b7ba186c77a42f3 (diff)
downloadpdfium-589f7e0a57675efce9810c15a3e9b7c49bf0bc90.tar.xz
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 .
Diffstat (limited to 'core/src/fxcrt/fx_extension.cpp')
-rw-r--r--core/src/fxcrt/fx_extension.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/core/src/fxcrt/fx_extension.cpp b/core/src/fxcrt/fx_extension.cpp
index d64a06d08b..a75cfb48df 100644
--- a/core/src/fxcrt/fx_extension.cpp
+++ b/core/src/fxcrt/fx_extension.cpp
@@ -13,6 +13,15 @@
#include <ctime>
#endif
+#include <cctype>
+
+int HexCharToDigit(char c) {
+ if (!std::isxdigit(c))
+ return 0;
+ char upchar = std::toupper(c);
+ return upchar > '9' ? upchar - 'A' + 10 : upchar - '0';
+}
+
IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, FX_DWORD dwModes) {
IFXCRT_FileAccess* pFA = FXCRT_FileAccess_Create();
if (!pFA) {