diff options
Diffstat (limited to 'gcc/cppexp.c')
| -rw-r--r-- | gcc/cppexp.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/gcc/cppexp.c b/gcc/cppexp.c index b71b02a..288cdd4 100644 --- a/gcc/cppexp.c +++ b/gcc/cppexp.c @@ -295,7 +295,16 @@ eval_token (pfile, token) case CPP_WCHAR: case CPP_CHAR: - op.value = cpp_interpret_charconst (pfile, token, 1, &temp, &unsignedp); + { + cppchar_t result = cpp_interpret_charconst (pfile, token, + &temp, &unsignedp); + op.value = result; + /* Sign-extend the result if necessary. */ + if (!unsignedp && (cppchar_signed_t) result < 0 + && sizeof (HOST_WIDEST_INT) > sizeof (cppchar_t)) + op.value |= ~(((unsigned HOST_WIDEST_INT) 1 << BITS_PER_CPPCHAR_T) + - 1); + } break; case CPP_NAME: |