Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - perm.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1019 1106 92.1 % Date: 2026-02-23 02:23:56 Functions: 112 119 94.1 % Legend: Lines: hit not hit

Function Name	Hit count
cyc_pow_perm	0
groupelts_abelian_group	0
groupelts_exponent	0
vec_is1to1	0
vecperm_extendschreier	0
vecsmall_duplicate_sorted	0
vecvecsmall_max	0
all_cyclic_subg	12
group_export_GAP	12
group_export_MAGMA	12
groupelts_cyclic_primepow	12
groupelts_residuum	12
groupelts_solvablesubgroups	12
groupelts_subgroups_raw	12
groupelts_to_regular	12
set_derived	12
set_idx	12
subg_to_elts	12
triv_subg	12
vecvecsmall_sort	12
perm_mul_inplace2	15
perm_to_GAP	18
group_export	24
perm_pow	66
vecvecsmall_sort_inplace	108
permcycles	197
permsign	207
group_abelianSNF	288
group_subgroup_isnormal	288
subg_extend	312
group_abelianHNF	330
vecvecsmall_sort_uniq	330
perm_order	341
permorder	346
cyclic_subg	372
groupelts_pow	372
abelian_group	396
subgroups_tableset	426
groupelts_center	600
groupelt_subg_normalize	696
set_groupelts	708
vecvecsmall_indexsort	735
dicyclicgroup	906
subg_get_gen	1008
quotient_groupelts	1296
perm_to_Z	1440
perm_to_Z_inplace	1457
permtonum	1463
vec_isconst	1584
_domul	1674
tableset_find_index	1716
isperm	2207
groupelts_cyclic_subgroups	3066
groupelts_to_group	3071
galois_elts_sorted	3330
conjclasses_repr	3660
groupelts_conjclasses	3660
group_to_cc	3678
vecperm_orbits	3942
group_subgroup_is_faithful	4128
group_subgroup_kernel_set	4128
Z_to_perm	5069
numtoperm	5069
cyc_pow	6288
subg_get_set	7452
group_isabelian	7668
group_isA4S4	8570
quotient_group	8714
group_quotient	8720
vecsmall_is1to1	9482
groupelts_quotient	10016
vecsmall_counting_indexsort	10130
perm_generate	11182
group_subgroups	11292
perm_cycles	11426
groupelts_conj_set	12384
groupelts_subgroup_isnormal	12522
vecsmall_counting_uniq	13853
vecsmall_uniq	14141
sgcmp	14874
vecsmall_isconst	14906
perm_powu	15991
vecsmall_duplicate	16417
group_domain	22838
cyclicgroup	23882
groupelts_set	24024
quo_get_coset	25698
quotient_perm	25698
vecsmall_uniq_sorted	26883
liftsubgroup	42153
perm_bracket	43200
quotient_subgroup_lift	43449
trivialsubgroups	44875
trivialgroup	44898
vecsmall_is1to1spec	45254
liftlistsubgroups	55879
vec_insert	70060
group_set	77683
group_elts	120723
quo_get_gen	121310
group_perm_normalize	156066
group_rightcoset	156066
perm_relorder	188508
group_leftcoset	260674
vecvecsmall_sort_shallow	313279
perm_orderu	374100
perm_commute	490719
group_order	608971
perm_sign	796355
grp_get_gen	807125
vecperm_orbits_i	1186164
grp_get_ord	1368020
vecsmall_counting_sort	1657736
vecsmall_indexsort	2012144
vecsmall_indexsortspec	6628848
vecsmall_sort_max	13279109
vecvecsmall_search	16383280
vecsmall_sort	16488107
vecsmall_sortspec	76470752

Generated by: LCOV version 1.16