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authorJiaxin Wu <jiaxin.wu@intel.com>2018-01-02 11:29:03 +0800
committerJiaxin Wu <jiaxin.wu@intel.com>2018-01-10 08:32:47 +0800
commit1e4725e569960b1107c11df6c404312d26129eab (patch)
treeb5add4a19ecb3110291ed6008e2238ee01681e8c /NetworkPkg
parent36c19ee6c7c4455f5de2817052444d1a0dad0e3d (diff)
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NetworkPkg/HttpDxe: Fix build warning error if CHAR8 is unsigned.
This patch is to fix the compiler warning error: C4245. The issue will happen if the below build option is enabled: *_*_*_CC_FLAGS = -J. That's because the value of ('A' - 'a') is a negative value, which will be converted to an unsigned type if CHAR8 is treated as unsigned: Src -= ('A' - 'a'); The above issue is also recorded at: https://bugzilla.tianocore.org/show_bug.cgi?id=815. Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Diffstat (limited to 'NetworkPkg')
-rw-r--r--NetworkPkg/HttpDxe/HttpsSupport.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/NetworkPkg/HttpDxe/HttpsSupport.c b/NetworkPkg/HttpDxe/HttpsSupport.c
index e6f4d5a6cc..6aed61a3a4 100644
--- a/NetworkPkg/HttpDxe/HttpsSupport.c
+++ b/NetworkPkg/HttpDxe/HttpsSupport.c
@@ -67,11 +67,11 @@ AsciiStrCaseStr (
Dst = *SearchStringTmp;
if ((Src >= 'A') && (Src <= 'Z')) {
- Src -= ('A' - 'a');
+ Src += ('a' - 'A');
}
if ((Dst >= 'A') && (Dst <= 'Z')) {
- Dst -= ('A' - 'a');
+ Dst += ('a' - 'A');
}
if (Src != Dst) {