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authorjan.nijtmans <nijtmans@users.sourceforge.net>2022-11-19 16:12:56 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2022-11-19 16:12:56 (GMT)
commit797aa89a3070e3e505f1761759a3264ce1628101 (patch)
treef02400cd846c0633a41de1106f48d11bd562b856 /generic/tclLink.c
parent4245f0e5a3dbaeec7f85c84b72fbc2683516d3ec (diff)
parent90d13253bd75cb679db561831edc73359d4a23e1 (diff)
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Merge 8.7
Diffstat (limited to 'generic/tclLink.c')
-rw-r--r--generic/tclLink.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/generic/tclLink.c b/generic/tclLink.c
index 99df5b6..4df2a33 100644
--- a/generic/tclLink.c
+++ b/generic/tclLink.c
@@ -538,10 +538,15 @@ GetUWide(
} else if (type == TCL_NUMBER_BIG) {
mp_int *numPtr = (mp_int *)clientData;
Tcl_WideUInt value = 0;
+ union {
+ Tcl_WideUInt value;
+ unsigned char bytes[sizeof(Tcl_WideUInt)];
+ } scratch;
size_t numBytes;
+ unsigned char *bytes = scratch.bytes;
- if (numPtr->sign || (MP_OKAY != mp_pack(&value, 1,
- &numBytes, 0, sizeof(Tcl_WideUInt), 0, 0, numPtr))) {
+ if (numPtr->sign || (MP_OKAY != mp_to_ubin(numPtr,
+ bytes, sizeof(Tcl_WideUInt), &numBytes))) {
/*
* If the sign bit is set (a negative value) or if the value
* can't possibly fit in the bits of an unsigned wide, there's
@@ -549,6 +554,16 @@ GetUWide(
*/
return 1;
}
+#ifndef WORDS_BIGENDIAN
+ while (numBytes-- > 0) {
+ value = (value << CHAR_BIT) | *bytes++;
+ }
+#else /* WORDS_BIGENDIAN */
+ /*
+ * Big-endian can read the value directly.
+ */
+ value = scratch.value;
+#endif /* WORDS_BIGENDIAN */
*uwidePtr = value;
return 0;
}