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-rw-r--r--src/parseTools.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/parseTools.js b/src/parseTools.js
index e226b395..d2e746ca 100644
--- a/src/parseTools.js
+++ b/src/parseTools.js
@@ -380,7 +380,7 @@ function IEEEUnHex(stringy) {
}
function parseNumerical(value, type) {
- if ((!type || type == 'double' || type == 'float') && value.substr(0,2) == '0x') {
+ if ((!type || type == 'double' || type == 'float') && (value.substr && value.substr(0,2) == '0x')) {
// Hexadecimal double value, as the llvm docs say,
// "The one non-intuitive notation for constants is the hexadecimal form of floating point constants."
value = IEEEUnHex(value);