3 files changed, 8 insertions, 8 deletions

diff --git a/numeric.c b/numeric.c
index b116376916..e7e740f81e 100644
--- a/numeric.c
+++ b/numeric.c
@@ -153,11 +153,11 @@ Perl_grok_bin(pTHX_ const char *start, STRLEN *len_p, I32 *flags, NV *result)
            for compatibility silently suffer "b" and "0b" as valid binary
            numbers. */
         if (len >= 1) {
-            if (s[0] == 'b') {
+            if (s[0] == 'b' || s[0] == 'B') {
                 s++;
                 len--;
             }
-            else if (len >= 2 && s[0] == '0' && s[1] == 'b') {
+            else if (len >= 2 && s[0] == '0' && (s[1] == 'b' || s[1] == 'B')) {
                 s+=2;
                 len-=2;
             }
@@ -269,11 +269,11 @@ Perl_grok_hex(pTHX_ const char *start, STRLEN *len_p, I32 *flags, NV *result)
            for compatibility silently suffer "x" and "0x" as valid hex numbers.
         */
         if (len >= 1) {
-            if (s[0] == 'x') {
+            if (s[0] == 'x' || s[0] == 'X') {
                 s++;
                 len--;
             }
-            else if (len >= 2 && s[0] == '0' && s[1] == 'x') {
+            else if (len >= 2 && s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) {
                 s+=2;
                 len-=2;
             }
diff --git a/pp.c b/pp.c
index a596ad3d66..64facc2c39 100644
--- a/pp.c
+++ b/pp.c
@@ -3067,11 +3067,11 @@ PP(pp_oct)
         tmps++, len--;
     if (*tmps == '0')
         tmps++, len--;
-    if (*tmps == 'x') {
+    if (*tmps == 'x' || *tmps == 'X') {
     hex:
         result_uv = grok_hex (tmps, &len, &flags, &result_nv);
     }
-    else if (*tmps == 'b')
+    else if (*tmps == 'b' || *tmps == 'B')
         result_uv = grok_bin (tmps, &len, &flags, &result_nv);
     else
         result_uv = grok_oct (tmps, &len, &flags, &result_nv);
diff --git a/toke.c b/toke.c
index 0decca85dd..b7b33e87b1 100644
--- a/toke.c
+++ b/toke.c
@@ -12978,11 +12978,11 @@ Perl_scan_num(pTHX_ const char *start, YYSTYPE* lvalp)
 	    const char *base, *Base, *max;
 
 	    /* check for hex */
-	    if (s[1] == 'x') {
+	    if (s[1] == 'x' || s[1] == 'X') {
 		shift = 4;
 		s += 2;
 		just_zero = FALSE;
-	    } else if (s[1] == 'b') {
+	    } else if (s[1] == 'b' || s[1] == 'B') {
 		shift = 1;
 		s += 2;
 		just_zero = FALSE;