misc: Make arguments to string functions const.

Where a pointer is to a buffer that does not need to be mutable for
the operation of the function, use const char * instead. This avoids
some type errors where constant string are passed.

1 files changed, 7 insertions, 6 deletions

diff --git a/src/m_misc.h b/src/m_misc.h
index 66035b5b..cb3dc8f6 100644
--- a/src/m_misc.h
+++ b/src/m_misc.h
@@ -43,12 +43,13 @@ boolean M_StrToInt(const char *str, int *result);
 void M_ExtractFileBase(char *path, char *dest);
 void M_ForceUppercase(char *text);
 char *M_StrCaseStr(char *haystack, char *needle);
-boolean M_StringCopy(char *dest, char *src, size_t dest_size);
-boolean M_StringConcat(char *dest, char *src, size_t dest_size);
-char *M_StringReplace(char *haystack, char *needle, char *replacement);
-char *M_StringJoin(char *s, ...);
-boolean M_StringStartsWith(char *s, char *prefix);
-boolean M_StringEndsWith(char *s, char *suffix);
+boolean M_StringCopy(char *dest, const char *src, size_t dest_size);
+boolean M_StringConcat(char *dest, const char *src, size_t dest_size);
+char *M_StringReplace(const char *haystack, const char *needle,
+                      const char *replacement);
+char *M_StringJoin(const char *s, ...);
+boolean M_StringStartsWith(const char *s, const char *prefix);
+boolean M_StringEndsWith(const char *s, const char *suffix);
 char *M_OEMToUTF8(const char *ansi);
 
 #endif