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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30759-17b423fb9b) Lines: 1881 2002 94.0 % Date: 2026-03-20 09:26:27 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57628765
Q_to_Fp	226838
Qdivii	143112663
Qdivis	1762593
Qdiviu	151465279
Zp_nosquare_m1	42
_serprec	8187500
addQp	4763086
addRc	310657229
addRq	1302
addTp	7
add_intmod_same	3410732
add_rfrac	3017228
add_rfrac_scal	8823769
add_scal	29398778
add_ser_scal	417278
addqf	77
addsub_frac	40739251
addsub_frac_i	14154040
addsub_polmod	7210
addsub_polmod_scal	13457873
addsub_pp	19975152
conj_i	31552561
conjvec	84
divRc	2885746
divRq	301
divTp	3674
div_T_scal	7293152
div_intmod_same	341545
div_polmod_same	37016
div_rfrac	1187496
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557229
div_scal_pol	14531927
div_scal_rfrac	1052280
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23425357
divfq	42
divpT	1204910
divpp	13212918
divqf	63
divrunextu	213316068
fix_rfrac	206780
gadd	6245819694
gaddsg	270811926
gconj	390604
gdiv	452835569
gdivgs	13375009
gdivgu	61806051
gdivgunextu	1583803
ginv	38278704
gmul	8957903557
gmul2n	146045332
gmulsg	242526772
gmulug	283938451
gred_rfrac2	39473628
gred_rfrac_simple	57631881
gsqr	1343344024
gsub	2898088153
gsubsg	3267100
inv_polmod	189775
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24595299
mulRc	355304777
mulRq	2387
mulTp	4985899
mul_gen_rfrac	161376
mul_intmod_same	2985209
mul_polmod	2674945
mul_polmod_same	8532791
mul_polmod_scal	3219561
mul_rfrac	7910194
mul_rfrac_scal	10435434
mul_scal	197839806
mul_self_scal	7663365
mul_ser_scal	323974
mulcIR	11891333
mulcc	281547314
mulcxI	15654477
mulcxmI	2985866
mulcxpowIs	5563672
mulpp	17505727
mulqf	28
mulqq	1127
mulrfrac	38072841
pol2ser	6378555
quad_polmod_conj	18403
quad_polmod_mul	5860237
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852085
ser_add	4094149
ser_normalize	7658
setfrac	15036225
sqr_polmod	419392
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017828
transtype	154217663
utoi_sign	65022740
warn_coercion	126

Generated by: LCOV version 1.16