diff options
Diffstat (limited to 'libgfortran/m4/cshift1.m4')
| -rw-r--r-- | libgfortran/m4/cshift1.m4 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libgfortran/m4/cshift1.m4 b/libgfortran/m4/cshift1.m4 index 28fae596bd4..861debeed2c 100644 --- a/libgfortran/m4/cshift1.m4 +++ b/libgfortran/m4/cshift1.m4 @@ -68,6 +68,7 @@ cshift1 (gfc_array_char * const restrict ret, index_type n; int which; 'atype_name` sh; + index_type arraysize; if (pwhich) which = *pwhich - 1; @@ -77,11 +78,13 @@ cshift1 (gfc_array_char * const restrict ret, if (which < 0 || (which + 1) > GFC_DESCRIPTOR_RANK (array)) runtime_error ("Argument ''`DIM''` is out of range in call to ''`CSHIFT''`"); + arraysize = size0 ((array_t *)array); + if (ret->data == NULL) { int i; - ret->data = internal_malloc_size (size * size0 ((array_t *)array)); + ret->data = internal_malloc_size (size * arraysize); ret->offset = 0; ret->dtype = array->dtype; for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++) @@ -96,6 +99,9 @@ cshift1 (gfc_array_char * const restrict ret, } } + if (arraysize == 0) + return; + extent[0] = 1; count[0] = 0; n = 0; |