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Fix potential crash in shader preprocess code

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rdb 2016-12-21 18:14:46 +01:00
parent a13fb0e8ca
commit e8fbd2f9da
1 changed files with 2 additions and 2 deletions
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4
panda/src/gobj/shader.cxx
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@ -2382,7 +2382,7 @@ do_read_source(string &into, const Filename &fn, BamCacheRecord *record) {
} }
// Strip trailing whitespace. // Strip trailing whitespace.
while (isspace(into[into.size() - 1])) { while (!into.empty() && isspace(into[into.size() - 1])) {
into.resize(into.size() - 1); into.resize(into.size() - 1);
} }
@ -2528,7 +2528,7 @@ r_preprocess_source(ostream &out, const Filename &fn,
} }
// Strip trailing whitespace. // Strip trailing whitespace.
while (isspace(line[line.size() - 1])) { while (!line.empty() && isspace(line[line.size() - 1])) {
line.resize(line.size() - 1); line.resize(line.size() - 1);
} }