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-rw-r--r--lex.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/lex.c b/lex.c
index d09f5507e3d2..0c65a9fe3292 100644
--- a/lex.c
+++ b/lex.c
@@ -170,10 +170,10 @@ int reg = 0; /* 1 => return a REGEXPR now */
int yylex(void)
{
int c;
- static char *buf = 0;
+ static char *buf = NULL;
static int bufsize = 5; /* BUG: setting this small causes core dump! */
- if (buf == 0 && (buf = (char *) malloc(bufsize)) == NULL)
+ if (buf == NULL && (buf = (char *) malloc(bufsize)) == NULL)
FATAL( "out of space in yylex" );
if (sc) {
sc = 0;
@@ -358,10 +358,10 @@ int string(void)
{
int c, n;
char *s, *bp;
- static char *buf = 0;
+ static char *buf = NULL;
static int bufsz = 500;
- if (buf == 0 && (buf = (char *) malloc(bufsz)) == NULL)
+ if (buf == NULL && (buf = (char *) malloc(bufsz)) == NULL)
FATAL("out of space for strings");
for (bp = buf; (c = input()) != '"'; ) {
if (!adjbuf(&buf, &bufsz, bp-buf+2, 500, &bp, "string"))
@@ -504,11 +504,11 @@ void startreg(void) /* next call to yylex will return a regular expression */
int regexpr(void)
{
int c;
- static char *buf = 0;
+ static char *buf = NULL;
static int bufsz = 500;
char *bp;
- if (buf == 0 && (buf = (char *) malloc(bufsz)) == NULL)
+ if (buf == NULL && (buf = (char *) malloc(bufsz)) == NULL)
FATAL("out of space for rex expr");
bp = buf;
for ( ; (c = input()) != '/' && c != 0; ) {
@@ -539,7 +539,7 @@ char ebuf[300];
char *ep = ebuf;
char yysbuf[100]; /* pushback buffer */
char *yysptr = yysbuf;
-FILE *yyin = 0;
+FILE *yyin = NULL;
int input(void) /* get next lexical input character */
{