From 3aef24fab6d9f51ebbe8094b79de895ff1cdce17 Mon Sep 17 00:00:00 2001
From: Jann Horn <jann@thejh.net>
Date: Mon, 19 Aug 2013 22:51:50 +0200
Subject: [PATCH] string: add TPRINTF macro for constructing temporary small
strings
---
string.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/string.c b/string.c
index b0db54c..f58fd3c 100644
--- a/string.c
+++ b/string.c
@@ -7,6 +7,16 @@ HEADER #include <stdint.h>
HEADER #define streq(a,b) (!strcmp((a),(b)))
+HEADER #define TPRINTF(name, ...) \
+HEADER char *name; \
+HEADER do { \
+HEADER int __tprintf_size = snprintf(NULL, 0, __VA_ARGS__); \
+HEADER assert(__tprintf_size != -1); \
+HEADER name = alloca(__tprintf_size+1); \
+HEADER int __tprintf_size2 = snprintf(name, __tprintf_size+1, __VA_ARGS__); \
+HEADER assert(__tprintf_size == __tprintf_size2); \
+HEADER } while (0); //////////////////////////////////////////////////////////
+
PUBLIC_FN int count_char_occurences(char *s, char c) {
int n=0;
while (*s) {
--
2.20.1