shithub: c9

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newtag: fix the case where lowfreetag doesn't point to a free tag anymore

--- a/c9.c

+++ b/c9.c

@@ -114,11 +114,15 @@

 	for(i = 0; i < (int)sizeof(c->tags)/sizeof(c->tags[0]); i++){

 		uint32_t x, j;

-		for(j = 0, x = c->tags[i]; (x & 1) != 0 && j < C9tagbits; j++);

-		if(j < C9tagbits){

-			c->tags[i] &= ~(1<<j);

-			*tag = i*C9tagbits + j;

-			return 0;

+		if((x = c->tags[i]) == 0)

+			continue;

+		for(j = 0; j < C9tagbits; j++){

+			if((x & (1<<j)) != 0){

+				c->tags[i] &= ~(1<<j);

+				*tag = i*C9tagbits + j;

+				c->lowfreetag = *tag + 1;

+				return 0;

+			}

 		}

 	}

--- a/c9.h

+++ b/c9.h

@@ -285,7 +285,7 @@

 	void (*t)(C9ctx *ctx, C9t *t) __attribute__((nonnull(1, 2)));

 	/* Callback for error messages. */

-	void (*error)(const char *fmt, ...) __attribute__((nonnull(1)));;

+	void (*error)(const char *fmt, ...) __attribute__((nonnull(1)));

 	/* Auxiliary data, can be used by any of above callbacks. */

 	void *aux;