diff options
author | Kenneth Graunke <[email protected]> | 2010-07-30 13:24:50 -0700 |
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committer | Kenneth Graunke <[email protected]> | 2010-07-30 13:26:14 -0700 |
commit | 805cbf39224580fdb85b09a21be7cbc658f0ecf6 (patch) | |
tree | f25a3491ee5e9e1a055ecedca3a53b9e4823698b /src/glsl/glcpp | |
parent | 0cf545ec696ab450c3f5ee65d7a0c2a5d9dca409 (diff) |
glcpp: Don't look for backslashes before the beginning of the string.
Fixes a valgrind error.
Diffstat (limited to 'src/glsl/glcpp')
-rw-r--r-- | src/glsl/glcpp/pp.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/glsl/glcpp/pp.c b/src/glsl/glcpp/pp.c index 1ce829a2c97..7aa1a968de7 100644 --- a/src/glsl/glcpp/pp.c +++ b/src/glsl/glcpp/pp.c @@ -93,12 +93,16 @@ remove_line_continuations(glcpp_parser_t *ctx, const char *shader) const char *newline; while ((newline = strchr(search_start, '\n')) != NULL) { const char *backslash = NULL; + + /* # of characters preceding the newline. */ + int n = newline - shader; + /* Find the preceding '\', if it exists */ - if (newline[-1] == '\\') { + if (n >= 1 && newline[-1] == '\\') backslash = newline - 1; - } else if (newline[-1] == '\r' && newline[-2] == '\\') { + else if (n >= 2 && newline[-1] == '\r' && newline[-2] == '\\') backslash = newline - 2; - } + /* Double backslashes don't count (the backslash is escaped) */ if (backslash != NULL && backslash[-1] == '\\') { backslash = NULL; |