grpc/include/grpc/support/string_util.h

/*
 *
 * Copyright 2015, Google Inc.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#ifndef GRPC_SUPPORT_STRING_UTIL_H
#define GRPC_SUPPORT_STRING_UTIL_H

#include <grpc/support/port_platform.h>

#ifdef __cplusplus
extern "C" {
#endif

/** String utility functions */

/** Returns a copy of src that can be passed to gpr_free().
   If allocation fails or if src is NULL, returns NULL. */
GPRAPI char *gpr_strdup(const char *src);

/** printf to a newly-allocated string.  The set of supported formats may vary
   between platforms.

   On success, returns the number of bytes printed (excluding the final '\0'),
   and *strp points to a string which must later be destroyed with gpr_free().

   On error, returns -1 and sets *strp to NULL. If the format string is bad,
   the result is undefined. */
GPRAPI int gpr_asprintf(char **strp, const char *format, ...)
    GPR_PRINT_FORMAT_CHECK(2, 3);

#ifdef __cplusplus
}
#endif

#endif /* GRPC_SUPPORT_STRING_UTIL_H */