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Remove redundant extern keywords from function declarations/definitions. (#1495)

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Extern keywords on function declarations/definitions provide no additional value since function declarations/definitions default to external linkage in C99, e.g. removing them won't change the semantics of the program.

The extern keywords were essentially a legacy from the early days of the project. This commit cleans this up across the whole codebase in one go to minimize history disruption.

The bulk of the changes in this commit were produced by a custom clang-tidy checker.

Note that variables declarations carrying the extern keyword are untouched by this commit since there the presence of the keyword actually has an impact on the semantics of the program.

JerryScript-DCO-1.0-Signed-off-by: Tilmann Scheller t.scheller@samsung.com
This commit is contained in:
Tilmann Scheller
2016-12-16 10:18:37 +01:00
committed by GitHub
parent defd97cc51
commit 1e99be90c3
43 changed files with 451 additions and 451 deletions
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jerry-libm/jerry-libm-internal.h
+19 -19
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@@ -49,34 +49,34 @@
/*
* ANSI/POSIX
*/
extern double acos (double);
extern double asin (double);
extern double atan (double);
extern double atan2 (double, double);
extern double cos (double);
extern double sin (double);
extern double tan (double);
double acos (double);
double asin (double);
double atan (double);
double atan2 (double, double);
double cos (double);
double sin (double);
double tan (double);
extern double exp (double);
extern double log (double);
double exp (double);
double log (double);
extern double pow (double, double);
extern double sqrt (double);
double pow (double, double);
double sqrt (double);
extern double ceil (double);
extern double fabs (double);
extern double floor (double);
extern double fmod (double, double);
double ceil (double);
double fabs (double);
double floor (double);
double fmod (double, double);
extern int isnan (double);
extern int finite (double);
int isnan (double);
int finite (double);
double nextafter (double, double);
/*
* Functions callable from C, intended to support IEEE arithmetic.
*/
extern double copysign (double, double);
extern double scalbn (double, int);
double copysign (double, double);
double scalbn (double, int);
#endif /* !JERRY_LIBM_INTERNAL_H */