diff options
Diffstat (limited to 'internal/ceres/stringprintf.h')
-rw-r--r-- | internal/ceres/stringprintf.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/internal/ceres/stringprintf.h b/internal/ceres/stringprintf.h new file mode 100644 index 0000000..f2f907a --- /dev/null +++ b/internal/ceres/stringprintf.h @@ -0,0 +1,89 @@ +// Ceres Solver - A fast non-linear least squares minimizer +// Copyright 2010, 2011, 2012 Google Inc. All rights reserved. +// http://code.google.com/p/ceres-solver/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// * Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// * Neither the name of Google Inc. nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +// Author: Sanjay Ghemawat +// +// Printf variants that place their output in a C++ string. +// +// Usage: +// string result = StringPrintf("%d %s\n", 10, "hello"); +// SStringPrintf(&result, "%d %s\n", 10, "hello"); +// StringAppendF(&result, "%d %s\n", 20, "there"); + +#ifndef CERES_INTERNAL_STRINGPRINTF_H_ +#define CERES_INTERNAL_STRINGPRINTF_H_ + +#include <cstdarg> +#include <string> + +#include "ceres/internal/port.h" + +namespace ceres { +namespace internal { + +#if (defined(__GNUC__) || defined(__clang__)) +// Tell the compiler to do printf format string checking if the compiler +// supports it; see the 'format' attribute in +// <http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Function-Attributes.html>. +// +// N.B.: As the GCC manual states, "[s]ince non-static C++ methods +// have an implicit 'this' argument, the arguments of such methods +// should be counted from two, not one." +#define CERES_PRINTF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((__format__ (__printf__, string_index, first_to_check))) +#define CERES_SCANF_ATTRIBUTE(string_index, first_to_check) \ + __attribute__((__format__ (__scanf__, string_index, first_to_check))) +#else +#define CERES_PRINTF_ATTRIBUTE(string_index, first_to_check) +#endif + +// Return a C++ string. +extern string StringPrintf(const char* format, ...) + // Tell the compiler to do printf format string checking. + CERES_PRINTF_ATTRIBUTE(1,2); + +// Store result into a supplied string and return it. +extern const string& SStringPrintf(string* dst, const char* format, ...) + // Tell the compiler to do printf format string checking. + CERES_PRINTF_ATTRIBUTE(2,3); + +// Append result to a supplied string. +extern void StringAppendF(string* dst, const char* format, ...) + // Tell the compiler to do printf format string checking. + CERES_PRINTF_ATTRIBUTE(2,3); + +// Lower-level routine that takes a va_list and appends to a specified string. +// All other routines are just convenience wrappers around it. +extern void StringAppendV(string* dst, const char* format, va_list ap); + +#undef CERES_PRINTF_ATTRIBUTE + +} // namespace internal +} // namespace ceres + +#endif // CERES_INTERNAL_STRINGPRINTF_H_ |