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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 92.2 % 1111 1024 Test Date: 2026-07-23 17:04:59 Functions: 94.1 % 119 112 Legend: Lines:     hit not hit

Function Name	Hit count
Z_to_perm	5915
_domul	2002
abelian_group	462
all_cyclic_subg	21
conjclasses_repr	4284
cyc_pow	7512
cyc_pow_perm	0
cyclic_subg	651
cyclicgroup	29162
dicyclicgroup	1085
galois_elts_sorted	3899
group_abelianHNF	644
group_abelianSNF	595
group_domain	27391
group_elts	141813
group_export	35
group_export_GAP	21
group_export_MAGMA	14
group_isA4S4	10094
group_isabelian	9723
group_leftcoset	307433
group_order	718571
group_perm_normalize	184758
group_quotient	10269
group_rightcoset	184758
group_set	90727
group_subgroup_is_faithful	4816
group_subgroup_isnormal	336
group_subgroup_kernel_set	4816
group_subgroups	13314
group_to_cc	4305
groupelt_subg_normalize	1218
groupelts_abelian_group	0
groupelts_center	700
groupelts_conj_set	14448
groupelts_conjclasses	4284
groupelts_cyclic_primepow	21
groupelts_cyclic_subgroups	4144
groupelts_exponent	0
groupelts_pow	651
groupelts_quotient	11928
groupelts_residuum	21
groupelts_set	28182
groupelts_solvablesubgroups	21
groupelts_subgroup_isnormal	15435
groupelts_subgroups_raw	21
groupelts_to_group	4151
groupelts_to_regular	21
grp_get_gen	951636
grp_get_ord	1612492
isperm	2667
liftlistsubgroups	65275
liftsubgroup	49350
numtoperm	5915
perm_bracket	75600
perm_commute	572901
perm_cycles	14121
perm_generate	13104
perm_mul_inplace2	21
perm_order	427
perm_orderu	441830
perm_pow	77
perm_powu	19194
perm_relorder	220332
perm_sign	968308
perm_to_GAP	441
perm_to_Z	1680
perm_to_Z_inplace	1701
permcycles	259
permorder	434
permsign	273
permtonum	1708
quo_get_coset	30408
quo_get_gen	142688
quotient_group	10262
quotient_groupelts	1659
quotient_perm	30408
quotient_subgroup_lift	51009
set_derived	21
set_groupelts	1239
set_idx	21
sgcmp	17353
subg_extend	546
subg_get_gen	1764
subg_get_set	12978
subg_to_elts	21
subgroups_tableset	497
tableset_find_index	2002
triv_subg	21
trivialgroup	52612
trivialsubgroups	52570
vec_insert	98084
vec_is1to1	0
vec_isconst	1855
vecperm_extendschreier	0
vecperm_orbits	4893
vecperm_orbits_i	461271
vecsmall_counting_indexsort	12922
vecsmall_counting_sort	1970981
vecsmall_counting_uniq	16129
vecsmall_duplicate	21079
vecsmall_duplicate_sorted	0
vecsmall_indexsort	2488260
vecsmall_indexsortspec	8239255
vecsmall_is1to1	11530
vecsmall_is1to1spec	55450
vecsmall_isconst	17944
vecsmall_sort	56204575
vecsmall_sort_max	51980087
vecsmall_sortspec	379775539
vecsmall_uniq	16488
vecsmall_uniq_sorted	31390
vecvecsmall_indexsort	1281
vecvecsmall_max	0
vecvecsmall_search	22934359
vecvecsmall_sort	21
vecvecsmall_sort_inplace	133
vecvecsmall_sort_shallow	370881
vecvecsmall_sort_uniq	462

Generated by: LCOV version 2.0-1