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-rw-r--r--src/helper/jim.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/helper/jim.c b/src/helper/jim.c
index c04acf09..53d1a75e 100644
--- a/src/helper/jim.c
+++ b/src/helper/jim.c
@@ -2217,7 +2217,7 @@ static Jim_Obj *JimStringToLower(Jim_Interp *interp, Jim_Obj *strObjPtr)
memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1);
for (i = 0; i < strObjPtr->length; i++)
- buf[i] = tolower(buf[i]);
+ buf[i] = tolower((unsigned)buf[i]);
return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
}
@@ -2233,7 +2233,7 @@ static Jim_Obj *JimStringToUpper(Jim_Interp *interp, Jim_Obj *strObjPtr)
memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1);
for (i = 0; i < strObjPtr->length; i++)
- buf[i] = toupper(buf[i]);
+ buf[i] = toupper((unsigned)buf[i]);
return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
}
@@ -2347,7 +2347,7 @@ static Jim_Obj *Jim_FormatString_Inner(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
case '8':
case '9':
accum = 0;
- while (isdigit(*fmt) && (fmtLen > 0)) {
+ while (isdigit((unsigned)*fmt) && (fmtLen > 0)) {
accum = (accum * 10) + (*fmt - '0');
fmt++; fmtLen--;
}