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| author | Dan Albert <danalbert@google.com> | 2016-01-14 16:43:34 -0800 |
|---|---|---|
| committer | Dan Albert <danalbert@google.com> | 2016-01-22 14:51:24 -0800 |
| commit | 3186be22b6598fbd467b126347d1c7f48ccb7f71 (patch) | |
| tree | 2b176d3ce027fa5340160978effeb88ec9054aaa /gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C | |
| parent | a45222a0e5951558bd896b0513bf638eb376e086 (diff) | |
| download | toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.tar.gz toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.tar.bz2 toolchain_gcc-3186be22b6598fbd467b126347d1c7f48ccb7f71.zip | |
Check in a pristine copy of GCC 4.8.1.
The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.
GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.
Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3
Diffstat (limited to 'gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C')
| -rw-r--r-- | gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C b/gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C new file mode 100644 index 000000000..24202b7d9 --- /dev/null +++ b/gcc-4.8.1/gcc/testsuite/g++.dg/warn/Wconversion3.C @@ -0,0 +1,35 @@ +// PR c++/34198 +// { dg-do compile } +// { dg-options "-O2 -Wconversion -Wsign-conversion" } + +signed char sc; +unsigned char uc; +short int ss; +unsigned short int us; +int si; +unsigned int ui; + +void test1 (void) +{ + int a = uc & 0xff; + int b = sc & 0x7f; + int c = 0xff & uc; + int d = 0x7f & sc; + int e = uc & sc; + unsigned char f = (int) uc; + signed char g = (int) sc; + unsigned char h = (unsigned int) (short int) uc; + signed char i = (int) (unsigned short int) sc; // { dg-warning "may alter its value" } + unsigned char j = (unsigned int) (short int) us; // { dg-warning "may alter its value" } + signed char k = (int) (unsigned short int) ss; // { dg-warning "may alter its value" } +} + +void test2 (void) +{ + signed char a = (unsigned char) sc; // { dg-warning "may change the sign" } + unsigned char b = (signed char) uc; // { dg-warning "may change the sign" } + signed char c = (int) (unsigned char) sc; // { dg-warning "may change the sign" } + unsigned char d = (int) (signed char) uc; // { dg-warning "may change the sign" } + int e = (unsigned int) si; // { dg-warning "may change the sign" } + unsigned int f = (int) ui; // { dg-warning "may change the sign" } +} |