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Corpus editor: fix random char value of UTF-8.

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Chang, Harry 2022-05-12 08:20:29 +00:00 committed by Konstantinos Margaritis
parent a9ca0e4de3
commit 31afacc7be
1 changed files with 2 additions and 2 deletions
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4
util/ng_corpus_editor.cpp
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@ -268,12 +268,12 @@ void CorpusEditorUtf8::flip_case(vector<unichar> &corpus) {
unichar CorpusEditorUtf8::chooseCodePoint(void) { unichar CorpusEditorUtf8::chooseCodePoint(void) {
/* We need to ensure that we don't pick a surrogate cp */ /* We need to ensure that we don't pick a surrogate cp */
const u32 range = const u32 range =
MAX_UNICODE + 1 - (UNICODE_SURROGATE_MAX + UNICODE_SURROGATE_MIN + 1); MAX_UNICODE + 1 - (UNICODE_SURROGATE_MAX - UNICODE_SURROGATE_MIN + 1);
unichar raw = props.rand(0, range - 1); unichar raw = props.rand(0, range - 1);
if (raw < UNICODE_SURROGATE_MIN) { if (raw < UNICODE_SURROGATE_MIN) {
return raw; return raw;
} else { } else {
return raw + UNICODE_SURROGATE_MAX + 1; return raw + UNICODE_SURROGATE_MAX - UNICODE_SURROGATE_MIN + 1;
} }
} }