diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/pj_internal.c | 12 | ||||
| -rw-r--r-- | src/proj_internal.h | 2 |
2 files changed, 14 insertions, 0 deletions
diff --git a/src/pj_internal.c b/src/pj_internal.c index 61905259..9cbbf20a 100644 --- a/src/pj_internal.c +++ b/src/pj_internal.c @@ -443,3 +443,15 @@ void proj_log_func (PJ_CONTEXT *ctx, void *app_data, PJ_LOG_FUNCTION logf) { if (0!=logf) ctx->logger = logf; } + + +/*****************************************************************************/ +int pj_is_nan (double val) { +/****************************************************************************** + Returns 0 if not a NaN and non-zero if val is a NaN. + + Provides an equivalent to isnan(). +******************************************************************************/ + /* cppcheck-suppress duplicateExpression */ + return val != val; +} diff --git a/src/proj_internal.h b/src/proj_internal.h index 75893c33..b3843a59 100644 --- a/src/proj_internal.h +++ b/src/proj_internal.h @@ -130,6 +130,8 @@ void proj_fileapi_set (PJ *P, void *fileapi); const char * const *proj_get_searchpath(void); int proj_get_path_count(void); +int pj_is_nan (double val); + #ifdef __cplusplus } #endif |