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[PATCH v3 2/7] strbuf: add xstrdup_toupper()




From: Lars Schneider <larsxschneider@xxxxxxxxx>

Create a copy of an existing string and make all characters upper case.
Similar xstrdup_tolower().

This function is used in a subsequent commit.

Signed-off-by: Lars Schneider <larsxschneider@xxxxxxxxx>
---
 strbuf.c | 12 ++++++++++++
 strbuf.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/strbuf.c b/strbuf.c
index b5d03a5029..703a1556cb 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -759,6 +759,18 @@ char *xstrdup_tolower(const char *string)
 	return result;
 }
 
+char *xstrdup_toupper(const char *string)
+{
+	char *result;
+	size_t len, i;
+
+	len = strlen(string);
+	result = xmallocz(len);
+	for (i = 0; i < len; i++)
+		result[i] = toupper(string[i]);
+	return result;
+}
+
 char *xstrvfmt(const char *fmt, va_list ap)
 {
 	struct strbuf buf = STRBUF_INIT;
diff --git a/strbuf.h b/strbuf.h
index 0a74acb236..2bc148526f 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -616,6 +616,7 @@ __attribute__((format (printf,2,3)))
 extern int fprintf_ln(FILE *fp, const char *fmt, ...);
 
 char *xstrdup_tolower(const char *);
+char *xstrdup_toupper(const char *);
 
 /**
  * Create a newly allocated string using printf format. You can do this easily
-- 
2.15.1