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Use C++11's inline member initialization syntax

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Migrate all Option and Summary structs to use
inline member initialization syntax.

This reduces the amount of code, and collocates the
default values with the documentation for the corresponding
member variable.

Change-Id: I8e6b9ee3b31464699d678667f6166ace5fc137c9
This commit is contained in:
Sameer Agarwal
2018-04-06 08:38:11 -07:00
parent 6851a63861
commit 9814a91fcf
17 changed files with 315 additions and 642 deletions
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include/ceres/numeric_diff_options.h
+5 -13
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@@ -37,18 +37,10 @@ namespace ceres {
// Options pertaining to numeric differentiation (e.g., convergence criteria,
// step sizes).
struct CERES_EXPORT NumericDiffOptions {
NumericDiffOptions() {
relative_step_size = 1e-6;
ridders_relative_initial_step_size = 1e-2;
max_num_ridders_extrapolations = 10;
ridders_epsilon = 1e-12;
ridders_step_shrink_factor = 2.0;
}
// Numeric differentiation step size (multiplied by parameter block's
// order of magnitude). If parameters are close to zero, the step size
// is set to sqrt(machine_epsilon).
double relative_step_size;
double relative_step_size = 1e-6;
// Initial step size for Ridders adaptive numeric differentiation (multiplied
// by parameter block's order of magnitude).
@@ -59,19 +51,19 @@ struct CERES_EXPORT NumericDiffOptions {
// Note: For Ridders' method to converge, the step size should be initialized
// to a value that is large enough to produce a significant change in the
// function. As the derivative is estimated, the step size decreases.
double ridders_relative_initial_step_size;
double ridders_relative_initial_step_size = 1e-2;
// Maximal number of adaptive extrapolations (sampling) in Ridders' method.
int max_num_ridders_extrapolations;
int max_num_ridders_extrapolations = 10;
// Convergence criterion on extrapolation error for Ridders adaptive
// differentiation. The available error estimation methods are defined in
// NumericDiffErrorType and set in the "ridders_error_method" field.
double ridders_epsilon;
double ridders_epsilon = 1e-12;
// The factor in which to shrink the step size with each extrapolation in
// Ridders' method.
double ridders_step_shrink_factor;
double ridders_step_shrink_factor = 2.0;
};
} // namespace ceres