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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/web2c/lib/chartostring.c
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/lib/chartostring.c')
-rw-r--r--Build/source/texk/web2c/lib/chartostring.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/lib/chartostring.c b/Build/source/texk/web2c/lib/chartostring.c
new file mode 100644
index 00000000000..7b34e694241
--- /dev/null
+++ b/Build/source/texk/web2c/lib/chartostring.c
@@ -0,0 +1,23 @@
+/* chartostring.c: change a character (i.e., an integer) to a
+ one-character string.
+
+Written in 1994 by Karl Berry. Public domain. */
+
+#include <w2c/config.h>
+#include "lib.h"
+
+/* This is needed because web2c turns the Pascal construct 'x' into the
+ C character constant 'x', not the string "x". And we need to keep it
+ that way because that's how xord is initialized, etc. But sometimes
+ we want one-character strings -- e.g., in tangle.ch and weave.ch.
+ There's no real alternative to wasting the two bytes of memory (plus
+ malloc overhead) here, but it doesn't matter. */
+
+string
+chartostring (char ch)
+{
+ string str = xmalloc (2);
+ str[0] = ch;
+ str[1] = 0;
+ return str;
+}