Use size_t for sizes in I/O classes

[libs/core.git] / source / io / base.h

diff --git a/source/io/base.h b/source/io/base.h
index b6d1ff65a2a83f1b793d10fb5a4d36fd9f966efa..7bd5bd9e963a4be383f2407a50fdf8a6f1c07d3e 100644 (file)
--- a/source/io/base.h
+++ b/source/io/base.h
@@ -1,6 +1,7 @@
 #ifndef MSP_IO_BASE_H_
 #define MSP_IO_BASE_H_
 
+#include <cstddef>
 #include <sigc++/sigc++.h>
 #include <msp/core/mutex.h>
 #include <msp/core/noncopyable.h>
@@ -69,25 +70,25 @@ public:
 protected:
        void check_access(Mode) const;
 
-       virtual unsigned do_write(const char *, unsigned) = 0;
-       virtual unsigned do_read(char *, unsigned) = 0;
+       virtual std::size_t do_write(const char *, std::size_t) = 0;
+       virtual std::size_t do_read(char *, std::size_t) = 0;
 
 public:
        /** Writes data from a buffer.  Subject to blocking.  Returns the number of
        bytes written, which may be zero for a non-blockin operation. */
-       unsigned write(const char *b, unsigned c) { return do_write(b, c); }
+       std::size_t write(const char *b, std::size_t c) { return do_write(b, c); }
 
        /** Writes a string.  This is identical to calling
        write(s.data(), s.size()). */
-       unsigned write(const std::string &s) { return do_write(s.data(), s.size()); }
+       std::size_t write(const std::string &s) { return do_write(s.data(), s.size()); }
 
        /** Writes a single character.  This is identical to calling
        write(&c, 1). */
-       virtual unsigned put(char c) { return do_write(&c, 1); }
+       virtual std::size_t put(char c) { return do_write(&c, 1); }
 
        /** Reads data into a buffer.  Subject to blocking.  Returns the number of
        bytes read, which may be zero for a non-blocking operation. */
-       unsigned read(char *b, unsigned c) { return do_read(b, c); }
+       std::size_t read(char *b, std::size_t c) { return do_read(b, c); }
 
        /** Reads characters up to the next linefeed or end-of-file.  The linefeed
        is not included in the line.  Returns true if a line was successfully read,