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| author | Kristian Evers <kristianevers@gmail.com> | 2018-04-22 22:39:57 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2018-04-23 10:26:14 +0200 |
| commit | 6f640d76e13cb643574b44b7498d51ecff6fb83e (patch) | |
| tree | ac17c997cf7efcea8854e3e1a616ede93ea07ebf /src/pj_math.c | |
| parent | e197e40e9b9ae99b8dac569428af35036822dca2 (diff) | |
| download | PROJ-6f640d76e13cb643574b44b7498d51ecff6fb83e.tar.gz PROJ-6f640d76e13cb643574b44b7498d51ecff6fb83e.zip | |
Add isnan() to proj_math.h
Code updated to use isnan() instead of pj_is_nan().
Diffstat (limited to 'src/pj_math.c')
| -rw-r--r-- | src/pj_math.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/pj_math.c b/src/pj_math.c index d5242636..751c2750 100644 --- a/src/pj_math.c +++ b/src/pj_math.c @@ -61,6 +61,11 @@ double pj_asinh(double x) { return x > 0 ? y : (x < 0 ? -y : x); } -#endif /* !(defined(HAVE_C99_MATH) && HAVE_C99_MATH) */ +/* Returns 0 if not a NaN and non-zero if val is a NaN */ +int pj_isnan (double x) { + /* cppcheck-suppress duplicateExpression */ + return x != x; +} +#endif /* !(defined(HAVE_C99_MATH) && HAVE_C99_MATH) */ |