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 - ZV.c (source / functions) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 84.9 % 1001 850 Test Date: 2026-09-21 17:02:41 Functions: 87.4 % 151 132 Legend: Lines:     hit not hit

Function Name	Hit count
ZC_ZV_mul	0
ZC_Z_sub	0
ZMV_prod	0
ZM_ZV_divrem	0
ZM_max_expi	0
ZM_max_expi_i	0
ZM_multosym	0
ZM_nc_mul_i	0
ZM_nm_mul	0
ZM_pow	0
ZM_reducemodlll	0
ZM_sqr_fast	0
ZM_sqr_slice	0
ZM_sqr_worker	0
ZM_togglesign	0
ZV_max_expi	0
ZV_max_expi_i	0
nm_Z_mul	0
zv_sumpart	0
ZV_ZV_divrem	7
ZM_modhnf	14
ZM_mul_diag	21
RgM_issquare	42
ZMV_to_zmV	49
matmodhnf	49
ZV_sum	77
zv_abs	77
matmodhnf_check	98
zmV_to_ZMV	126
zv_neg_inplace	126
ZC_modhnf	280
_ZM_mul	280
ZM_divexactu	441
QM_sqr	700
ZM_mul_fast	839
ZM_to_zm	1022
ZM_mul_slice	1105
ZM_mul_worker	1105
zvV_equal	1638
ZC_divexactu	2261
ZM_transmul	2289
zv_ZM_mul	2408
ZM_supnorm	4260
ZV_max_lg	10640
ZMrow_equal0	16231
zv_sum	16519
ZM_Z_div	19308
ZV_abscmp	19747
zm_to_Flm	22694
ZM_max_lg	23338
ZM_powu	23618
_ZM_sqr	24143
ZM_sqr	25221
ZM_sqr_i	25221
zv_z_mul	28732
ZM_equal0	32306
QM_ishnf	48524
zv_neg	51885
ZC_z_mul	64224
ZM_mul_sw	77134
ZC_reducemodlll	98017
ZC_reducemodmatrix	112327
ZC_reducemodmatrix_i	112327
QM_QC_mul	127093
ZM_isscalar	162822
ZC_is_ei	174510
ZM_sub	181392
zm_to_ZM	183470
ZV_ZM_mul	231351
ZM_reducemodmatrix	239883
ZM_reducemodmatrix_i	239883
ZV_equal	293378
ZV_content	300478
zv_to_Flv	366646
ZC_Z_add	370297
ZV_neg_inplace	391760
Zupdate_row	402380
ZV_to_nv	431621
ZM_hnfdivrem	529621
ZM_hnfdivrem_i	529635
ZM_Z_divexact	530810
ZM_transmultosym	532275
subtract_slices	539938
QM_mul	559203
Z_ZC_sub	584244
ZM_diag_mul	593212
RgM_check_ZM	598635
add_slices	617072
ZM_isidentity	658545
ZM_isdiagonal	677499
ZM_copy	749916
ZC_lincomb_1	759520
ZM_ishnf	806950
ZM_add	844721
zv_prod	958464
ZM_zm_mul	1001358
ZM_Q_mul	1166403
ZRED	1170951
ZincrementalGS	1279498
RgV_check_ZV	1497225
ZM_neg	1734748
check_ZV	1939155
zv_prod_Z	1976459
ZV_zc_mul	2229556
ZC_Q_mul	2792946
ZV_cmp	3256100
ZM_Z_mul	3392453
ZM_equal	3503737
ZC_Z_div	3676471
ZM_det_triangular	4270809
ZC_Z_divexact	5892976
ZC_neg	6377810
ZV_equal_lg	6528328
ZV_dotsquare	6869499
ZV_togglesign	7283793
ZV_prod	8856317
ZC_sub	9162696
ZC_sub_i	9577915
ZC_hnfdivrem	10699768
ZC_hnfdivrem_i	11405917
ZM_mul_classical	13897546
sw_bound	13974680
ZV_equal0	14226473
vecsmall_prod	14694393
ZC_lincomb1	16046176
ZV_dotproduct	16715026
ZM_zc_mul	17962529
ZC_copy	18827391
ZV_dotproduct_i	19537453
zv_content	19541286
ZM_zc_mul_i	20113818
ZM_mul	21128676
ZM_mul_i	21530966
zv_canon_inplace	22921521
zv_equal0	23113629
ZM_ZC_mul	25859413
ZC_add	27825768
ZM_max_lg_i	27949932
Flc_lincomb1_inplace	31171280
ZC_lincomb	34920675
ZC_Z_mul	36989695
ZC_add_i	37856171
ZC_lincomb1_inplace	66136908
zv_equal	68047478
ZC_lincomb1_inplace_i	77343663
ZM_ZC_mul_i	79220264
ZV_max_lg_i	114767684
ZMrow_ZC_mul	137962211
zv_dotproduct	196399119
_mulii	319253540
ZMrow_ZC_mul_i	609059675

Generated by: LCOV version 2.0-1