fixed lack of variable initialization bug.

diff --git a/ext/mbstring/mbfilter_kr.c b/ext/mbstring/mbfilter_kr.c
index f5d2ca4c98857c0b4373539f23357f346f1a26f9..0d7e7efce83d3677af761e3186cb1d8b99fda586 100644 (file)
--- a/ext/mbstring/mbfilter_kr.c
+++ b/ext/mbstring/mbfilter_kr.c
@@ -373,7 +373,7 @@ mbfl_filt_conv_wchar_2022kr(int c, mbfl_convert_filter *filter TSRMLS_DC)
 int
 mbfl_filt_conv_uhc_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC)
 {
-       int c1, w, flag;
+       int c1, w = 0, flag = 0;
 
        switch (filter->status) {
        case 0:
@@ -392,10 +392,10 @@ mbfl_filt_conv_uhc_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC)
        case 1:         /* dbcs second byte */
                filter->status = 0;
                c1 = filter->cache;
-
                if ( c1 >= 0x81 && c1 <= 0xa0){
                        w = (c1 - 0x81)*190 + (c - 0x41);
                        if (w >= 0 && w < uhc1_ucs_table_size) {
+                               flag = 1;
                                w = uhc1_ucs_table[w];
                        } else {
                                w = 0;
@@ -403,6 +403,7 @@ mbfl_filt_conv_uhc_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC)
                } else if ( c1 >= 0xa1 && c1 <= 0xc6){
                        w = (c1 - 0xa1)*190 + (c - 0x41);                       
                        if (w >= 0 && w < uhc2_ucs_table_size) {
+                               flag = 2;
                                w = uhc2_ucs_table[w];
                        } else {
                                w = 0;
@@ -410,6 +411,7 @@ mbfl_filt_conv_uhc_wchar(int c, mbfl_convert_filter *filter TSRMLS_DC)
                } else if ( c1 >= 0xc7 && c1 <= 0xfe){
                        w = (c1 - 0xc7)*94 + (c - 0xa1);                
                        if (w >= 0 && w < uhc3_ucs_table_size) {
+                               flag = 3;
                                w = uhc3_ucs_table[w];
                        } else {
                                w = 0;