diff options
Diffstat (limited to 'gcc/cppexp.c')
| -rw-r--r-- | gcc/cppexp.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/gcc/cppexp.c b/gcc/cppexp.c index f8da222..bd8e663 100644 --- a/gcc/cppexp.c +++ b/gcc/cppexp.c @@ -254,6 +254,10 @@ static struct token tokentab2[] = { {NULL, ERROR} }; +/* This is used to accumulate the value of a character literal. It is static + so that it only gets allocated once per compilation. */ +static char *token_buffer = NULL; + /* Read one token. */ struct operation @@ -323,11 +327,18 @@ cpp_lex (pfile, skip_evaluation) int wide_flag = 0; int max_chars; U_CHAR *ptr = tok_start; + + /* We need to allocate this buffer dynamically since the size is not + a constant expression on all platforms. */ + if (token_buffer == NULL) + { #ifdef MULTIBYTE_CHARS - char token_buffer[MAX_LONG_TYPE_SIZE/MAX_CHAR_TYPE_SIZE + MB_CUR_MAX]; + token_buffer = xmalloc (MAX_LONG_TYPE_SIZE/MAX_CHAR_TYPE_SIZE + + MB_CUR_MAX); #else - char token_buffer[MAX_LONG_TYPE_SIZE/MAX_CHAR_TYPE_SIZE + 1]; + token_buffer = xmalloc (MAX_LONG_TYPE_SIZE/MAX_CHAR_TYPE_SIZE + 1); #endif + } if (*ptr == 'L') { |