https://llvm.org/bugs/show_bug.cgi?id=24188
Bug ID: 24188
Summary: clang fails to compile source with unicode literals
under -std=gnu99
Product: clang
Version: 3.4
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
clang fails to compile source with unicode literals under -std=gnu99.
gcc allows unicode literals under -std=gnu99 in support of TR 19769.
clang version used was 3.4; however it was tested as far back as 3.2 with same
behavior and possibly goes back a lot further.
### STANDALONE SOURCE:
#include <uchar.h>
int main(void) {
char16_t c16 = u'\u00F6';
char32_t c32 = U'\U0010FFFF';
}
### COMPILER INVOCATION:
clang -std=gnu99 -c unicode_literals.c
### EXPECTED OUTPUT:
Successful compile.
### ACTUAL OUTPUT:
unicode_literals.c:4:17: error: use of undeclared identifier 'u'
char16_t c16 = u'\u00F6';
^
unicode_literals.c:5:17: error: use of undeclared identifier 'U'
char32_t c32 = U'\U0010FFFF';
^
2 errors generated.
### clang -v OUTPUT:
Ubuntu clang version 3.4-1ubuntu3 (tags/RELEASE_34/final) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix
### GCC INVOCATION:
gcc -std=gnu99 -c unicode_literals.c
## gcc -v OUTPUT:
Thread model: posix
gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04)
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